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脱式计算(能简便的用简便方法计算)960-720÷8×912×(736-656÷16)360÷9+3×21927÷[630÷(34+36)]125×(8×2)+100125×88230×24+240×7746×101-146(841-41)÷25×4.
题目详情
脱式计算(能简便的用简便方法计算) 960-720÷8×9 | 12×(736-656÷16) | 360÷9+3×21 |
927÷[630÷(34+36)] | 125×(8×2)+100 | 125×88 |
230×24+240×77 | 46×101-146 | (841-41)÷25×4. |
▼优质解答
答案和解析
(1)960-720÷8×9,
=960-720÷8÷9,
=960-810,
=150;
(2)12×(736-656÷16),
=12×(736-41),
=12×695,
=12×(700-5),
=12×700-12×5,
=(10+2)×700-60,
=7000+1400-60,
=8340;
(3)360÷9+3×21,
=40+63,
=103;
(4)927÷[630÷(34+36)],
=927÷[630÷70],
=927÷9,
=103;
(5)125×(8×2)+100,
=125×8×2+100,
=1000×2+100,
=2000+100,
=2100;
(6)125×88,
=125×8×11,
=1000×11,
=11000;
(7)230×24+240×77,
=23×240+240×77,
=240×(23+77),
=240×100,
=24000;
(8)46×101-146,
=46×(100+1)-146,
=4600+46-146,
=4600-(146-46),
=4600-100,
=4500;
(9)(841-41)÷25×4,
=800÷25×4,
=8×100÷25×4,
=8×(100÷25)×4,
=8×4×4,
=32×4,
=128.
=960-720÷8÷9,
=960-810,
=150;
(2)12×(736-656÷16),
=12×(736-41),
=12×695,
=12×(700-5),
=12×700-12×5,
=(10+2)×700-60,
=7000+1400-60,
=8340;
(3)360÷9+3×21,
=40+63,
=103;
(4)927÷[630÷(34+36)],
=927÷[630÷70],
=927÷9,
=103;
(5)125×(8×2)+100,
=125×8×2+100,
=1000×2+100,
=2000+100,
=2100;
(6)125×88,
=125×8×11,
=1000×11,
=11000;
(7)230×24+240×77,
=23×240+240×77,
=240×(23+77),
=240×100,
=24000;
(8)46×101-146,
=46×(100+1)-146,
=4600+46-146,
=4600-(146-46),
=4600-100,
=4500;
(9)(841-41)÷25×4,
=800÷25×4,
=8×100÷25×4,
=8×(100÷25)×4,
=8×4×4,
=32×4,
=128.
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