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脱式计算.(能简算的要简算)7000÷125÷8864÷32×27250×32×125138×69÷138×6998×201(160-60)×(67+85)
题目详情
脱式计算.(能简算的要简算)
7000÷125÷8 | 864÷32×27 | 250×32×125 |
138×69÷138×69 | 98×201 | (160-60)×(67+85) |
▼优质解答
答案和解析
(1)7000÷125÷8
=7000÷(125×8)
=7000÷1000
=7;
(2)864÷32×27
=27×27
=729;
(3)250×32×125
=250×(4×8)×125
=(250×4)×(8×125)
=1000×1000
=1000000;
(4)138×69÷138×69
=(138÷138)×(69×69)
=1×4761
=4761;
(5)98×201
=98×(200+1)
=98×200+98×1
=19600+98
=19698;
(6)(160-60)×(67+85)
=100×152
=15200.
=7000÷(125×8)
=7000÷1000
=7;
(2)864÷32×27
=27×27
=729;
(3)250×32×125
=250×(4×8)×125
=(250×4)×(8×125)
=1000×1000
=1000000;
(4)138×69÷138×69
=(138÷138)×(69×69)
=1×4761
=4761;
(5)98×201
=98×(200+1)
=98×200+98×1
=19600+98
=19698;
(6)(160-60)×(67+85)
=100×152
=15200.
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