简便计算35×18+70×91

简便计算35×18+70×91

35×18+35×182
=35×(18+182)
=35×200
=7000

540除18+70*18简便计算

540÷18+70×18
=30+1260
=1290

简便计算70×35-15×70

70×35-15×70
=70*（35-15）
=70*20
=1400

135*91-35*49的简便计算

135*91-35*49的简便计算
=100x91+35x91-35x49
=9100+35x(91-49)
=9100+35x52
=9100+1820
=9100-2000+180
=7280

简便计算 35 -99 — ×18 36

把99又35/36拆分成（100－1/36）

—99又35/36×18
=—(100－1/36)×18…………乘法分配律
= -(100×18－1/36×18)
= -(1800－1/2)
= - 1799又1/2

2.6*35+8.1*70简便计算

2.6*35+8.1*70
=2.6*0.5*70+8.1*70
=(1.3+8.1)*70
=(13+81)*7
=94*7
=100*7-6*7
=700-42
=658

840÷28﹢70×18简便计算

840÷28﹢70×18
=30+1260
=1290

66×35加70×17简便计算

原式
=66x35+70x17
=66x35+35x2x17
=66x35+35x34
=(66+34)x35
=100x35
=3500
供参考。

500×91+250×18的简便计算

这道题这样算，利用乘法结合律，
所以结果是，
500×（91+9）=50000

9936/35*(-18)简便计算

9936/35×(-18)
=9936/35×(-36/2)
=9936/35×(-35/2-1/2)
=9936/35×(-35/2)+9936/35×(-1/2)
=-4968-4968/35
=-4968×(1+1/35)
=-4968×36/35
=-178848/35