分析:根据整数、分数、小数的加减乘除法的计算法则进行解答即可.
解答:
解:7×5=37 |
÷= |
+= |
×= |
1+-0.4=0.1 |
+0.75=1 |
+= |
÷9= |
+= |
×0.4= |
4÷= |
×= |
(2+)×(1+)=3 |
×9=6 |
+= |
4÷=12 |
+1=1 |
5-(2+)=2 |
4.5÷=18 |
39×=12 |
11×(10+)=111 |
11+(3+)14= |
×= |
8×=6 |
12-(6+)=5 |
1÷(1+)= |
20÷20%=100 |
1÷0.01=100 |
1.12=1.21 |
9.9÷(1+)=5.5 |
81÷= |
1.65-0÷1.65=1.65 |
××= |
5-1.4-1.6=2 |
(0.18+0.9)÷9=0.12 |
8××1.25=3 |
1.25×0.16×8=1.6 |
+7.3÷10%=1.155 |
+9-0.2=9.425 |
5.08-0.74-1.26=3.08 |
×0.2= |
1-0.375÷=0 |
8÷0.5+×(1+)=16 |
(+)×24=22 |
10(3+)÷(3+)=10 |
(3++5++2+)-(5+)=6 |
+÷+= |
1--= |
3-(2+)+(2+)=3 |
-÷3= |
0×(3+)+(1+)=1 |
+-+= |
0.125×64×0.125=1 |
×8+8×=12 |
+×16=12 |
-+= |
点评:考查了整数、分数、小数的加减乘除法的口算能力,注意认真计算即可.