计算下列各题。(能简算的要简算)
(12.4÷0.4+2.5)÷2.5 、
7.25÷1.25÷8
8.6×101-8.6
3.625÷0.25×4
(12.4÷0.4+2.5)÷2.5 、
7.25÷1.25÷8
8.6×101-8.6
3.625÷0.25×4
脱式计算。
0.25×0.63×40 2.5×0.9+1.8×0.6 4.5+5.5×5.6
86×1.01 8.8×1.25 3.56×39+7.44×39-39
0.25×0.63×40 2.5×0.9+1.8×0.6 4.5+5.5×5.6
86×1.01 8.8×1.25 3.56×39+7.44×39-39
直接计算
0.12×0.5= 3.57÷0.7= 0.125×8= 0.72÷12=
(1﹣0.4)×5= 0.27+99×0.27= 2.33×0.5×2= 15×0.4×25=
25÷25÷25= 2.5×0.4÷2.5×0.4=
0.12×0.5= 3.57÷0.7= 0.125×8= 0.72÷12=
(1﹣0.4)×5= 0.27+99×0.27= 2.33×0.5×2= 15×0.4×25=
25÷25÷25= 2.5×0.4÷2.5×0.4=
计算下面各题,注意使用简便方法.
14.39+4.8+5.61+6.2
5.6÷2.5÷0.4
99×0.95+0.95
6.8+1.25×6.8×8
3.75÷[0.3×(1.34﹣0.84)]
14.39+4.8+5.61+6.2
5.6÷2.5÷0.4
99×0.95+0.95
6.8+1.25×6.8×8
3.75÷[0.3×(1.34﹣0.84)]