Nêu tính chất của phép trừ,phép cộng,phép nhân,phép chia phân số.
Mọi người giúp mik nha!
Những câu hỏi liên quan
nêu tính chất, quy tắc của các phép tính cộng, trừ, nhân, chia phân số, hỗn số, số thập phân
bn doc trong sach gk nhe, ghi ra dai dong lam do!
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Mấy cái này có hết trong sách giáo khoa Toán lớp 6 nha bạn !
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Xem thêm câu trả lời
nêu các phép toán trong Q
phép cộng trừ nhân chia lũy thừa
giúp mik vssssssssssssssssssssssssssssssssssssssssssssssssssss
cần gấppppppppppppppppppppppppppppppppppppppppppppppppp
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
ok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok okok ok ok
a,Nêu các tính chất của phép trừ hai số tự nhiên
b,Nêu định nghĩa của phép chia hết và phép chia có dư
c,Nêu các tính chất của phép chia 2 số tự nhiên
Biểu thức không có dấu ngoặc đơn, có các phép tính cộng, trừ, nhân, chia thì ta thực hiện các phép tính nhân, chia trước rồi thực hiện các phép tính cộng trừ sau.
Cho mk xin 20 phép tính ( cộng , trừ , nhân , chia ) số thập phân nha
1/2 + 2/5, 1/9+2/17,5/6+9/2,15/100+80/100
189/100-163/100,120/150-15/150
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viết dạng tổng quát tính chất giao hoán kết hợp của phép cộng phép nhân tính chất phân phối của phép nhân với phép cộng
phép cộng | phép nhân | |
giao hoán | a+b=b+a | a.b=b.a |
kết hợp | (a+b)+c=a+(b+c)=b+(a+c) | (a.b).c=a.(b.c)=b.(c.a) |
phân phối giữa phép cộng và phép nhân:a.(c+b)=a.b+a.c
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| Tính chất | Phép cộng | Phép nhân |
| Giao hoán | a+b=b+a | a.b=b.a |
| Kết hợp | a+(b+c)=b+(a+c) | a.(b.c)=b.(a.c) |
| Tính chất phân phối của phép nhân với phép cộng | a.(b+c)= | a.b+a.c |
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Phát biểu và nêu tính chất cơ bản của phép cộng trừ phân số
\(\dfrac{a}{b}+\dfrac{c}{d}=\dfrac{a\cdot d+b\cdot c}{bd}\)
\(\dfrac{a}{b}-\dfrac{c}{d}=\dfrac{a\cdot d-b\cdot c}{b\cdot d}\)
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7 tháng 11 2015 lúc 19:57
1. Viết dạng tổng quát các tính chất giao hoán, kết quả của phép cộng, phép nhân, tính chất phân phối của phép nhân đối với phép cộng.
4. Khi nào ta nói số tự nhiên a chia hết cho số tự nhiên b?
1. tự viết ( có trong sgk )
2 . Khi tồn tại số tự nhiên q sao cho a = b.q
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Viết dạng tổng quát của tính chất giao hoán,kết hợp của phép nhân,phép cộng,tính chất phân phối của phép nhân đối với phép cộng
| Giao hoán | a x b = b x a | a + b = b + a |
| Kết hợp | a x b x c = a x ( b x c ) | a + b + c = a + ( b + c |
| Phân phối của nhân với cộng | a( b + c ) = ab + ac | ab + ac = a( b + c ) |
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