10+10-\(10^2\)
Tính:
9 + 1 = … | 8 + 2 = … | 7 + 3 = … | 6 + 4 = … |
5 + 5 = … | 1 + 9 = … | 2 + 8 = … | 3 + 7 = … |
4 + 6 = … | 10 – 5 = … | 10 – 1 = … | 10 – 2 = … |
10 – 3 = … | 10 – 4 = … | 10 – 0 = … | 10 – 9 = … |
10 – 8 = … | 10 – 7 = … | 10 – 6 = … | 10 – 10 = … |
Lời giải chi tiết
9 + 1 = 10 | 8 + 2 = 10 | 7 + 3 = 10 | 6 + 4 = 10 |
5 + 5 = 10 | 1 + 9 = 10 | 2 + 8 = 10 | 3 + 7 = 10 |
4 + 6 = 10 | 10 – 5 = 5 | 10 – 1 = 9 | 10 – 2 = 8 |
10 – 3 = 7 | 10 – 4 = 6 | 10 – 0 = 10 | 10 – 9 = 1 |
10 – 8 = 2 | 10 – 7 = 3 | 10 – 6 = 4 | 10 – 10 = 0 |
10 10 10 10 10 10 10 10 10 5 9 8 7 6 10 1 2 3 4 0
9+1+1+6+0+9+8+7+6+7+6+9+7+54+90+87+890=?
Tính:
1 + 9 = 2 + 8 = 3 + 7 = 4 + 6 = 5 + 5 =
10 - 1 = 10 - 2 = 10 - 3 = 10 - 4 = 10 - 5 =
6 + 4 = 7 + 3 = 8 + 2 = 9 + 1 = 10 + 0 =
10 - 6 = 10 - 7 = 10 - 8 = 10 - 9 = 10 - 0 =
1 + 9 = 10 2 + 8 = 10 3 + 7 = 10 4 + 6 = 10 5 + 5 = 10
10 - 1 = 9 10 - 2 = 8 10 - 3 = 7 10 - 4 = 6 10 - 5 = 5
6 + 4 = 10 7 + 3 = 10 8 + 2 = 10 9 + 1 = 10 10 + 0 = 10
10 - 6 = 4 10 - 7 = 3 10 - 8 = 2 10 - 9 = 1 10 - 0 = 10
=10 , =9,8,7,6,5, =10
1 + 9 = 10 2 + 8 = 10 3 + 7 = 10 4 + 6 = 10 5 + 5 = 10
10 - 1 = 9 10 - 2 = 8 10 - 3 = 7 10 - 4 = 6 10 - 5 = 5
6 + 4 = 10 7 + 3 = 10 8 + 2 = 10 9 + 1 = 10 10 + 0 = 10
10 - 6 = 4 10 - 7 = 3 10 - 8 = 2 10 - 9 = 1 10 - 0 = 10
a) Số?
6 + …. = 10 2 + …. = 10
9 + …. = 10 3 + …. = 10
4 + …. = 10 8 + …. = 10
1 + …. = 10 …. + 3 = 10
b) Viết (theo mẫu):
10 = 9 + 1 10 = ……
10 = …… 10 = ……
10 = …… 10 = ……
10 = …… 10 = ……
10 = …… 10 = ……
Phương pháp giải:
Nhẩm phép cộng có tổng bằng 10 rồi điền số còn thiếu vào chỗ trống.
Lời giải chi tiết:
a)
6 + 4 = 10 2 + 8 = 10
9 + 1 = 10 3 + 7 = 10
4 + 6 = 10 8 + 2 = 10
1 + 9 = 10 7 + 3 = 10
b)
10 = 9 + 1 10 = 8 + 2
10 = 7 + 3 10 = 1 + 9
10 = 2 + 8 10 = 3 + 7
10 = 6 + 4 10 = 10+ 0
10 = 4 + 6 10 = 5 + 5
6+4
9+1
4+6
2+8
3+7
8+2
dêu bang 10
TL:
a)Số:
6+4=10 2+8=10
9+1=10 3+7=10
4+6=10 8+2=10
1+9=10 7+3=10
b) Viết (theo mẫu)
10=9+1 10=3+7
10=8+2. 10=4+6
10=5+5. 10=1+9
10=7+3. 10=6+4
10=2+8. 10=10+0
T.I.C.K mik nha bn~
Tính nhanh:
a,1/3+3/4+2/3+1/4 b,3/4+3/5+2/8+4/10
c, 1/10+2/10+3/10+4/10+5/10+6/10+7/10+8/10+9/10
a)
`1/3+3/4+2/3+1/4`
`=1/3+2/3+3/4+1/4`
`=1+1`
`=2`
b)
`3/4+3/5+2/8+4/10`
`=3/4+2/8+3/5+4/10`
`=6/8+2/8+6/10+4/10`
`=1+1`
`=2`
c)
`1/10+2/10+3/10+4/10+5/10+6/10+7/10+8/10+9/10`
`=1/10+9/10+2/10+8/10+3/10+7/10+6/10+4/10+5/10`
`=1+1+1+1+5/10`
`=4+5/10`
`=40/10+5/10`
`=45/10=9/2`
a: =1/3+2/3+3/4+1/4
=1+1
=2
b: =3/4+1/4+3/5+2/5
=1+1
=2
c: =(1+2+3+4+5+6+7+8+9)/10
=45/10
=9/2
Tính:
8 + 2 = … | 9 + 1 = … | 7 + 3 = … | 5 + 5 = … |
2 + 8 = … | 1 + 9 = … | 10 – 3 = … | 10 – 5 = … |
10 – 8 = … | 10 – 9 = … | 4 + 6 = … | 10 + 0 = … |
10 – 2 = … | 10 – 1 = … | 10 – 6 = … | 10 – 0 = … |
ời giải chi tiết:
8 + 2 = 10 | 9 + 1 = 10 | 7 + 3 = 10 | 5 + 5 = 10 |
2 + 8 = 10 | 1 + 9 = 10 | 10 – 3 = 7 | 10 – 5 = 5 |
10 – 8 = 2 | 10 – 9 = 1 | 4 + 6 = 10 | 10 + 0 = 10 |
10 – 2 = 8 | 10 – 1 = 9 | 10 – 6 = 4 | 10 – 0 = 10 |
Tính:
10 – 9 = … | 10 – 8 = … |
10 – 7 = … | 10 – 6 = … |
10 – 5 = … | 10 – 1 = … |
10 – 2 = … | 10 – 3 = … |
10 – 4 = … | 10 – 10 =… |
Lời giải chi tiết:
10 – 9 = 1 | 10 – 8 = 2 |
10 – 7 = 3 | 10 – 6 = 4 |
10 – 5 = 5 | 10 – 1 = 9 |
10 – 2 = 8 | 10 – 3 = 7 |
10 – 4 = 6 | 10 – 10 = 0 |
Tính
b)
1 + 9 = 2 + 8 = 3 + 7 = 4 + 6 = 5 + 5 =
10 - 1 = 10 - 2= 10 - 3 = 10 - 4 = 10 - 5 =
10 - 9 = 10 - 8 = 10 - 7 = 10 - 6 = 10 - 0 =
b)
1 + 9 = 10 2 + 8 = 10 3 + 7 = 10 4 + 6 = 10 5 + 5 = 10
10 - 1 = 9 10 - 2= 8 10 - 3 = 7 10 - 4 = 6 10 - 5 = 5
10 - 9 = 1 10 - 8 = 2 10 - 7 = 3 10 - 6 = 4 10 - 0 = 10
Tính:
a)
10 - 2 = 10 - 4 = 10 - 3 = 10 - 7 = 10 - 5 =
10 - 9 = 10 - 6 = 10 - 1 = 10 - 0 = 10 - 10 =
a) 10 - 2 = 8 10 - 4 = 6 10 - 3 = 7 10 - 7 = 3 10 - 5 = 5
10 - 9 = 1 10 - 6 = 4 10 - 1 = 9 10 - 0 = 10 10 - 10 = 0
ĐÚNG GHI đ SAI GHI s
a, 6/10 = 6 : 2/ 10 : 2 ...
b, 6/10 = 6 - 2/ 10 - 2 ...
c, 6/10 = 6 + 2/ 10 + 2 ...
d, 6/10 = 6 x 2/ 10 x 2
giúp e ạ.Em sẽ tick ạ
1/10 + 2/10 + 3/10+ 4/10 + 5/10 + 6/10 + 7/10 + 8/10 + 9/10 =?
\(\dfrac{1}{10}+\dfrac{2}{10}+\dfrac{3}{10}+\dfrac{4}{10}+\dfrac{5}{10}+\dfrac{6}{10}+\dfrac{7}{10}+\dfrac{8}{10}+\dfrac{9}{10}=\dfrac{1}{10}.\left(1+2+3+4+5+6+7+8+9\right)\\ =\dfrac{1}{10}.45=\dfrac{45}{10}=\dfrac{45:5}{10:5}=\dfrac{9}{2}\)
\(\dfrac{1}{10}+\dfrac{2}{10}+\dfrac{3}{10}+\dfrac{4}{10}+\dfrac{5}{10}+\dfrac{6}{10}+\dfrac{7}{10}+\dfrac{8}{10}+\dfrac{9}{10}\)
\(=\left(\dfrac{1}{10}+\dfrac{9}{10}\right)+\left(\dfrac{2}{10}+\dfrac{8}{10}\right)+\left(\dfrac{3}{10}+\dfrac{7}{10}\right)+\left(\dfrac{4}{10}+\dfrac{6}{10}\right)+\dfrac{5}{10}\)
\(=1+1+1+1+\dfrac{5}{10}\)
\(=4+\dfrac{5}{10}\)
\(=\dfrac{40}{10}+\dfrac{5}{10}\)
\(=\dfrac{45}{10}\)