等我下 正在做
12.5×8×2×0.5=100
12.5x16x0.5
=12.5x(16x0.5)
=12.5x8
=100
(4.8/0.16)/0.3
=4.8/(0.16x0.3)
=4.8/0.048
=100
48.7-32.76/8.4
=48.7-(32.76+0.84-0.84)/8.4
=48.7-33.6/8.4+0.1
=48.7-4+0.1
=44.8
0.57x99+0.57
=0.57x(99+1)
=0.57x100
=57
12.5×8×2×0.5
12.5×16×0.5
=12.5×8×2×0.5
=100×1
=100
4.8÷0.16÷0.3
=4.8÷(0.16×0.3)
=4.8÷0.048
=4800÷48
=100
0.57×99+0.57
=0.57×(99+1)
=0.57×100
=570
另一题不能简便计算。
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