Question

脱式计算（能简算的要简算） 0.125×0.25×329.6-9.6×0.996

脱式计算（能简算的要简算） 0.125×0.25×329.6-9.6×0.996.3×10.115.58÷8.2-0.724.536÷0.8÷0.1252.8×3.6+14×0.28．

Answer 1

①0.125×0.25×32
=0.125×0.25×4×8
=（0.125×8）×（0.25×4）
=1×1
=1

②9.6-9.6×0.99
=9.6×（1-0.99）
=9.6×0.01
=0.096


③6.3×10.1
=6.3×（10+0.1）
=6.3×10+6.3×0.1
=63+0.63
=63.63

④15.58÷8.2-0.72
=1.9-0.72
=1.18

⑤4.536÷0.8÷0.125
=4.536÷（0.8×0.125）
=4.536÷0.1
=45.36

⑥2.8×3.6+14×0.28
=2.8×3.6+1.4×2.8
=2.8×（3.6+1.4）
=2.8×5
=14