50×0.25×0.2简算和1.25×0.25×0.2和6.08×99+6.8
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50×0.25×0.2简算和1.25×0.25×0.2和6.08×99+6.8
15.2×2.4+1.52×76和1.25×0.25×32快
15.2×2.4+1.52×76和1.25×0.25×32快
50×0.25×0.2
=50×0.2×0.25
=10×0.25
=2.5
1.25×0.25×0.2
=1.25×0.2×0.25
=0.25×0.25
=0.625
6.08×99+6.8
=6.08×99+6.08+0.72
=6.08×(99+1)+6.8
=608+0.72
=608.72
15.2×2.4+1.52×76
=1.52×24+1.52×76
=1.52×(24+76)
=1.52×100
=152
1.25×0.25×32
=1.25×0.25×8×4
=(1.25×8)×(0.25×4)
=10×1
=10
=50×0.2×0.25
=10×0.25
=2.5
1.25×0.25×0.2
=1.25×0.2×0.25
=0.25×0.25
=0.625
6.08×99+6.8
=6.08×99+6.08+0.72
=6.08×(99+1)+6.8
=608+0.72
=608.72
15.2×2.4+1.52×76
=1.52×24+1.52×76
=1.52×(24+76)
=1.52×100
=152
1.25×0.25×32
=1.25×0.25×8×4
=(1.25×8)×(0.25×4)
=10×1
=10
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