数学五年级简便算法题及答案(2)

　　10÷3.14-6.86÷3.14 =(10-6.86)÷3.14 =3.14÷3.14 =1

　　37.68÷0.25÷4 =37.68÷(0.25×4) =37.68÷1 =37.68

　　3.75-(2.75-1.3) =3.75-2.75+1.3 =1+1.3 =2.3

　　37.56-(18+7.56) =37.56-7.56-18 =30-18 =12 0.77÷14 =0.77÷7÷2 =0.11÷2 =0.055 4.5×9.8

　　=4.5×(10-0.2) =4.5×10-4.5×0.2 =45-0.9 =44.1 0.7÷0.125

　　=(0.7×8)÷(0.125×8) =0.56÷1 =0.56 0.7÷0.25

　　=(0.7×4)÷(0.25×4) =2.8÷1 =2.8

　　2.5×3.2×12.5 =(2.5×0.4)×(8×12.5) =1×100 =100

　　12.5×9.6×0.25

　　=(12.5×0.8)×3×(4×0.25) =10×3×1 =30

　　3.75-(2.8-1.25) =3.75+1.25-2.8

　　=5-2.8 =2.2

　　37.65÷0.4÷0.25 3.125÷8÷0.125 37.65-4.75-3.25 25×6.4×12.5 =25×4×0.2×8×12.5 3.6×0.25 =(4-0.4)×0.25 3.4÷9+5.6÷9