31.5×0.931.5 5.42÷0.95.42 0.98×10.98
2.5×0.82.5÷0.8 3.56÷1.013.56 4.95÷14.95
5.5×0.15.5÷10 9.9×6.970
0.21÷2.1＝ 36÷1.8＝
9×20.7＝ 3.54×10＝
0.8×0.01＝ 4.8÷3＝
3.6÷3.6＝ 5.75×0＝
0.036×100= 12.1÷1.1= 0.45×10= 6＋3.4=
0.28÷0.01= 10-0.1= 4.3×0.2= 2.25÷0.01=
2.67×1.3= 10.08÷5.6=
0.86×40.5≈ ★3.36÷12=
(得数保留一位小数)
158÷40= ☆13.65÷7.5=