递等式计算.(能简便运算的要用简便方法计算)
14760÷36﹣24×11
5.2×4.5+4.5×3.8+4.5
12.5×25×0.4×0.8
5﹣(÷
+
)
4.8÷16+〔1÷(5﹣5.09)〕
[4.2+(5.36﹣1.2)÷0.26]÷20.
脱式计算.
6.8×0.75÷0.5
13.75÷0.125﹣2.75
42÷(5.25÷0.25)
1.53+23.4÷7.2.
计算:﹣
+
.
混合运算
160﹣5×13
8×(156﹣124)
96÷(42﹣34)
16×3+98.
口算大王
180÷9= |
400÷8= |
9×800= |
500×4= |
102+25= |
14×20= |
20×4= |
6×500= |
9×400= |
2×300= |
720÷8= |
90÷3= |
(25+75)×9= |
100﹣40÷2= |
18×2+30= |
列竖式计算
3.56+7.5= |
3﹣2.08= |
2.25×48= |
44÷50= |
5.06×1.3= |
0.72÷1.5= |
35.5×180= |
50.4÷0.48= |
40.5÷0.18= |