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计算下列各题(能简便的要简便)101×49-49848-800÷16×12271×24-24×17148×(32-17)÷3032×[168-(89+43)]101×32
题目详情
计算下列各题(能简便的要简便)
101×49-49 | 848-800÷16×12 | 271×24-24×171 |
48×(32-17)÷30 | 32×[168-(89+43)] | 101×32 |
▼优质解答
答案和解析
(1)101×49-49
=(101-1)×49
=100×49
=4900;
(2)848-800÷16×12
=848-50×12
=848-600
=248;
(3)271×24-24×171
=(271-171)×24
=100×24
=2400;
(4)48×(32-17)÷30
=48×15÷30
=720÷30
=24;
(5)32×[168-(89+43)]
=32×[168-132]
=32×36
=1152;
(6)101×32
=(100+1)×32
=100×32+1×32
=3200+32
=3232.
=(101-1)×49
=100×49
=4900;
(2)848-800÷16×12
=848-50×12
=848-600
=248;
(3)271×24-24×171
=(271-171)×24
=100×24
=2400;
(4)48×(32-17)÷30
=48×15÷30
=720÷30
=24;
(5)32×[168-(89+43)]
=32×[168-132]
=32×36
=1152;
(6)101×32
=(100+1)×32
=100×32+1×32
=3200+32
=3232.
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