÷ =
﹣ =
× =
+ × ×0=
43.96+31.4=
0.625×8=
2.8× =
0.25×16=
1.02﹣0.53=
=
3.6÷0.1=
3.14×4=
40×25%=
1﹣0.14=
3.4÷0.17=
0.92=
625+375=
32×0.125=
15-15× =
3.7×11﹣3.7=
10﹣0.08=
× ÷ × =
803-207= ÷5= 798+150= + =
0.25×8= 1.5- = 7.5÷ = 0.77+0.3=
9.8-8= × = 45.54÷45= 24× =
132﹣75=
2×=
0.42÷0.7=
-×=
7.2×0.125=
×25%=
-=
×0.6÷×0.6=
⑴两个质数相乘,积一定是合数。
⑵比的前项和后项同时乘一个数,比值不变。
⑶圆的面积和半径成正比例。
⑷小明班级平均身高是156cm,小明的身高不可能145cm。
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)