7.6×0.97.6
5.22×05.22+0
8×1.78
1.8×2.20.18×22
51.8×0.951.8
176×0.8176÷0.8
8.15×1018.15×100+1
9.3×1.89.3 4.25×0.84.25 6÷1.56 12.3÷0.112.3×0.1
1÷0.25= +1 = ×24= + =
400×0.02= 10÷ = 6 ×0= 3× ﹣ ×3=