8.15×1.6= 15.36÷0.12=
3.02×0.78= *0.6÷0.25=
10-3.06 24.579+11.03 1.5÷0.45(用循环小数表示)
0.38×3.2 △16.65÷3.3 *40.8÷0.34
⑴18.6+20=
7.05+32.5=
⑵24.7-10.7=
50-39.8=
⑶4.5×102=
8.04×0.9=
⑷6÷12=
6.5÷0.5=
9.3×0.18= ★4.88×5.2≈
8.74÷3.8= ※0.432÷0.24=
1.68×0.65= 2.49×7.2=
0.63÷0.21= 3.14÷0.82≈ (保留两位小数)
0.84×0.45= 41.9÷0.75≈ (精确到百分位)