3 运动定律与简便运算
脱式计算,能简算的要简算.
99×0.375+0.375 (10+120÷10)×9 5.64+4.97+0.03.
10.93﹣3.74﹣4.26 480÷(144﹣960÷8) 24×25.
脱式计算(能简算就简算).
10﹣5×1.65 98.4﹣98.4×0.9 3.2×1.25×0.25
7.75×0.4﹣0.432÷0.48 10.1×8.6 4.35﹣(2.35﹣1.7)
怎么样简便怎样算.
54÷(4.86+5.94)
1.75÷2.5÷O.4
0.6×0.72+0.28×0.6
2.8+7.56+4.2
0.7×99+0.7
2.6+0.4×l.9.
(1)5.1÷0.17÷3
(2)1.25×1.05﹣0.05×1.25
(3)8÷[(40.75﹣9.5)×0.4]
(4)1.75×3.75÷0.175
(5)1.12×1.8+2.24×0.1.
递等式计算(能简算的要简算).
(1)92.3﹣55.51+4.49
(2)6.52+1.43+8.57+3.48
(3)75.8﹣13.57﹣1.43
(4)39×89+39×12﹣39
(5)5208÷(31×56)
(6)(2657+35×26)÷29.
计算下面各题,能简算的必须简算.
9.5×1.06﹣2.52÷2.4 6.25÷1.25÷0.8 2.5×(3.5﹣1.65)×0.4
27.2÷(3.2+23×0.6) 68.5+31.5÷(0.29+0.41) 3.82×(2.8﹣1.3)﹣1.82×1.5.
脱式计算:
0.75×18÷0.15 7.28+3.2÷2.5 2.05÷0.82+33.6
1.08×0.8÷0.27 21.36÷0.8﹣12.9 4.28÷0.9÷4.1.
怎样简便就怎样算.
4.27÷0.7×1.3 18.9﹣18.9÷1.4 0.25×408
0.25×1.25×16 0.4×99+0.4 12.5×1.7+8.3×12.5.
计算,能简算的要简算.
2.144÷3.2+4.32 9.66÷2.3÷0.3 5.5×0.25×1.4
1.25×2.47×8 27×10.2 4.8×3.8+6.2×4.8
计算下面各题,能简算的要简算.
8.27+5.84+1.73+2.16. 18.51﹣9.08﹣0.92 528÷6×5﹣432
282×5+18×5 75+360÷20+15 (641﹣341)÷25×4.
能简算则简算
12.45﹣9.62+0.37 0.83+0.9+0.1+0.17 6.32﹣(5.26﹣3.68)
35×8+35×11+35 32×125×25 (135+415)÷5﹣16.
递等式计算(能简便的要简便)
0.8×(1.25+1.25+1.25) 2.5÷[(10.75﹣4.5)×0.4] 15.37﹣7.59+5.73﹣12.41
1.25×48×0.25 3.7×1.2+4.3×1.2 11.72﹣7.85﹣(1.26+0.46)
计算(能简便的要简便计算)
(1)7.4﹣0.15×2.8
(2)0.008+0.92×5﹣1.28
(3)7.8÷(1.3×4)
(4)7.2×0.9+0.1×7.2.
递等式计算,能简便的用简便方法计算
5.41+3.46﹣2.46 2.03﹣0.18﹣2.82+7.97 10﹣4.44﹣5.56
32.63+7.89﹣6.4 125×25×32 97×88.
递等式计算:
2.54+2.84+7.46
2.5×4﹣4.8÷1.6
3.2÷0.4×(5.38﹣4.13)
[11.4﹣(2.8÷0.7﹣2.5×1.2)]÷5.2.