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用简便方法计算.37+22+63+458×(125×11)530-475-257.65+3.72+6.35+6.2864×99+644900÷25�用简便方法计算.37+22+63+458×(125×11)530-475-257.65+3.72+6.35+6.2864×99+644900÷25÷4(100+4)×2517×43-43×7
题目详情
用简便方法计算. 37+22+63+45 8×(125×11) 530-475-25 7.65+3.72+6.35+6.28 64×99+64 4900÷25�
用简便方法计算.
37+22+63+45 8×(125×11) 530-475-25 37+22+63+45 8×(125×11) 530-475-25 7.65+3.72+6.35+6.28 64×99+64 4900÷25÷4 7.65+3.72+6.35+6.28 64×99+64 4900÷25÷4 (100+4)×25 17×43-43×7 13.65-(3.65+8.5) (100+4)×25 17×43-43×7 13.65-(3.65+8.5)
用简便方法计算.
37+22+63+45 | 8×(125×11) | 530-475-25 |
7.65+3.72+6.35+6.28 | 64×99+64 | 4900÷25÷4 |
(100+4)×25 | 17×43-43×7 | 13.65-(3.65+8.5) |
37+22+63+45 | 8×(125×11) | 530-475-25 |
7.65+3.72+6.35+6.28 | 64×99+64 | 4900÷25÷4 |
(100+4)×25 | 17×43-43×7 | 13.65-(3.65+8.5) |
▼优质解答
答案和解析
(1)37+22+63+45
=(37+63)+(22+45)
=100+67
=167;
(2)8×(125×11)
=(8×125)×11
=1000×11
=11000;
(3)530-475-25
=530-(475+25)
=530-500
=30;
(4)7.65+3.72+6.35+6.28
=(7.65+6.35)+(3.72+6.28)
=14+10
=24;
(5)64×99+64
=64×(99+1)
=64×100
=6400;
(6)4900÷25÷4
=4900÷(25×4)
=4900÷100
=49;
(7)(100+4)×25
=100×25+4×25
=2500+100
=2600;
(8)17×43-43×7
=(17-7)×43
=10×43
=430;
(9)13.65-(3.65+8.5)
=13.65-3.65-8.5
=10-8.5
=1.5.
=(37+63)+(22+45)
=100+67
=167;
(2)8×(125×11)
=(8×125)×11
=1000×11
=11000;
(3)530-475-25
=530-(475+25)
=530-500
=30;
(4)7.65+3.72+6.35+6.28
=(7.65+6.35)+(3.72+6.28)
=14+10
=24;
(5)64×99+64
=64×(99+1)
=64×100
=6400;
(6)4900÷25÷4
=4900÷(25×4)
=4900÷100
=49;
(7)(100+4)×25
=100×25+4×25
=2500+100
=2600;
(8)17×43-43×7
=(17-7)×43
=10×43
=430;
(9)13.65-(3.65+8.5)
=13.65-3.65-8.5
=10-8.5
=1.5.
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