a)2.31.12+4.6.42+8.27.3
b)36.28+36.82+64.69+64.41
a) 2.31.12+4.6.42+8.27.3
b)36.28+36.82+64.69+64.41
Tính nhanh:
a)2.31.12+4.6.42+8.27.3
b)36.28+36.82+64.69+64.41
a)=24.31+24.42+24.27=24.(31+42+27)=24.100=2400
b)=36.(28+82)+64.(69+41)=36.110+64.110=110.(36+64)=110.100=11000
a) 2.31.12 + 4.6.42 + 8.27.3 = 24.31 + 24.42 + 24.27 = 24.(31 + 42 + 27) = 24.100 = 2400
b) 36.28 + 36.82 + 64.69 + 64.41
= 36.(28 + 82) + 64.(69 + 41)
= 36. 110 + 64. 110
= 110. (36 + 64) = 110.100 = 11000
Tính nhanh
a:2.31.12+4.6.42+8.27.3
b:36.28+36.82+64.69+64.41
a ) = 24 . 31 + 24.42 + 24.27
= 24 . ( 31+42+27)
=24.100
= 2400
b) = 36.( 28+82) + 64.( 69+41)
= 36.101 + 64.101
=101.( 36+64)
=101.100
=10100
A) 2.31.12+4.6.42+8.27.3
=( 2.12 )+31.( 4.6 )+42. ( 8.3)+27
=24 . (31 + 42 +27 )
=24 . ( 73 + 27)
= 24 . 100
= 2400
B ) 36 . 28 + 36.82+64. 69+64 . 41
= 36 . ( 28 + 82 )+ 64 . ( 69 + 41 )
= 36 . 110+64.110
=110 . (36 + 64 )
= 110 . 100
= 11000
tinh nhanh
a) 2.31.12+4.6.42+8.27.3
b) 36.28+36.82+64.69+64.41
a) 2.31.12+4.6.42+8.27.3
=24.31+24.42+24.27
=24.(31+42+27)
=24.100
=2400
b) 36.28+36.82+64.69+64.41
=36.(28+82)+64.(69+41)
=36.110+64.110
=110.(36+64)
=110.100
=11000
trieu dang trả lời đúng rùi cho bạn ấy 1 cái đúng nhé
- a. 2.31.12+4.6.42+8.27.3
= 2.12.31 + 2.2.6.42 + 2.4.3.27
= (2.12).31 + (2.2.6).42 + (2.4.3).27
= 24.31 + 24.42 + 24.27
= 24. (31 + 42 + 27 )
= [ Kết quả cậu tự tính nhé ]
- b. 36.28+36.82+64.69+64.41
= [36.(28+82)] + [64.(69+41)]
= 36.100 + 64.110
= 3600 + 6440
= [ kết quả cậu tự tính ]
=> [ k for me ] :)) Mơn :3
Tinh nhanh:
a) 2.31.12+4.6.42+8.27.3
b) 36.28+36.82+64.69+64.41
2.31.12+4.6.42+8.27.3
=24.31+24.42+24.27
=24.(31+42+27)
=24.100
=2400
36.28+36.82+64.69+64.41
=36.(28+82)+64.(69+41)
=36.100+64.100
=(36+64).100
=100.100
=10000
a) 2.31.12+4.6.42+8.27.3
= (2.12) .31+ ( 4.6) .42+(8.3).27
= 24.31+24.42+24.27
=24.(31+42+27)
=24.100
=2400
b)36.28+36.82+64.69+64.41
=36.(28+82)+64.(69+41)
=36.110+64.110
=110.(36+64)
=110.100
=11000
tính nhanh
a) 2.31.12+4.6.42+8.27.3
b)36.28+36.82+64.69+64.41
a)\(2.31.12+4.6.42+8.27.3\)
\(=24.31+24.42+24.27\)
\(=24.\left(31+42+27\right)\)
\(=24.100\)
\(=2400\)
b)\(36.28+38.82+64.69+64.41\)
\(=36.\left(28+82\right)+64.\left(69+41\right)\)
\(=36.110+64.110\)
\(=110.\left(36+64\right)\)
\(=110.100\)
\(=11000\)
a)2.31.12+4.6.42+8.27.3
=24.31+24.42+24.27
=24.(31+42+27)
=24.100
\(=2400\)
Ai trên 10 điểm hỏi đáp thì mình nha mình đang cần gấp chỉ còn 99 điểm là tròn rồi mong các bạn hỗ trợ mình sẽ đền bù xứng đáng
tích nha
tính nhanh:
a) 34 . 15 + 34 . 85
b) 12 . 57 + 57 . 25 + 63 . 57
c) 36 . 28 + 36 . 82 + 64 . 69 + 64 . 41
d) 2 . 31 . 12 + 4 . 6 . 42 + 8 . 27 . 3
Tính nhanh:
a) 34.15 + 34.85
b) 12.57 + 57.25 + 63.57
c) 36.28 + 36.82 + 64.69 + 64.41
d) 2.31.12 + 4.6.42 + 8.27.3
a) 34.15 + 34.85 = 34.(15+85) = 34.100 = 3400
b) 12.57 + 57.25 + 63.57 = 57.(12+25+63) = 57.100 = 5700
c) 36.28 + 36.82 + 64.69 + 64.41 = 36.(28+82) + 64(69+41) = 36.110 + 64.110 = 110.(36+64) = 11000
d) 2.31.12 + 4.6.42 + 8.27.3 = 24.31 + 24.42 + 24.27 = 24.(31+42+27) = 24.100 = 2400
Tính nhanh :
a) 2.31.12+4.6.42+8.27.3
b)36.28+36.82+64.69+64.41
a, 24.31 + 24.42 + 24.27 = 24 ( 31+42+27) =24.100 = 2400
b,36.(28+82)+64(69+41) = 36.110 + 64.110 = 110 (36+64) = 110.100= 11000
a,24.31+24.42+24.27
=24.(31+42+27)
=24.100
=2400
b.36.(28+82)+64.(69+41)
=36.110+110.64
=110.(36+64)
=110.100
=11000