2.3×5=
0.3+0.01=
4÷0.5=
6.7-2.3=
2.3÷0.01=
123×0.9123 455455÷1.1
4×0.7=
0.75×8=
3.6÷0.18=
5.2×4=
3.2×56=
20.7÷0.23=
5.628÷2.8=
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≈
5.4÷0.09=
0.45÷5=
2.6÷0.2=
3.4-2=
9.6÷2=
39÷1.3=
4.8×0=
1.4÷0.14=
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
+ = 0.24×5= 4.8÷10%= 20×( + )= 36×25%=
12.6÷0.3= ×2.4= - ×0= 632÷69≈ 7.99×9.99%≈
2.5×4= 10-3.7= 5.6×10%=
37+25= 0.8÷0.002= 81÷3=
3.2÷0.01= 2.2×9.9= 305-199=
2.05×4= 8×12.5%=