1.6×7= 25.25÷5= 1.25×8= 60×0.9=
0.8×0.1= 0÷7.05= 0.4×2.5= 1.7+3.3×0.2=
①0.25×8=
②31.6×0.1=
③4.99×2≈
④9×5.1≈
⑤2.4÷2=
⑥48÷0.6=
⑦0.056÷0.8=
⑧0.45÷0.3=
1.2÷0.3=
10.4×0.1=
0.7×0.9=
2-0.6=
4×2.5=
0÷0.26=
0.45÷0.9=
0.9-0.03=
0.6×11=
1.8+0.01=
2.35×1.4=
60.9÷0.15=
★17.2÷3≈
1.3×0.004= 5.8-0.8×5= 2.3×0.07= 5.2×0.7=
3-0.98= 0.9÷0.01= 3.9×0.01= 99×0.25=
排碳计算公式
家用自来水二氧化碳排放量(kg)=使用量(t)x0.91
开私家车的二氧化碳排放量(kg)=耗油量(L)×2.7