11.口算
250-70= | 600-300= | 34+40= | 63÷7= |
86-25= | 0×10= | 420-370= | 7×8= |
36+64= | 1200-300= | 340+370= | 690+10= |
58-49≈ | 498+403≈ | 201+197≈ | 291-98≈ |
10.一个长方形的周长是16厘米,长是6厘米,宽是( )厘米.
A. | 10 | B. | 2 | C. | 4 |
7.计算.注:前三题要验算.
920÷8= | 132×3= | 540÷5= |
192×6= | 204×9= | 585÷9= |
3.用竖式计算(第1、第2小题要验算)
0 159618 159626 159632 159636 159642 159644 159648 159654 159656 159662 159668 159672 159674 159678 159684 159686 159692 159696 159698 159702 159704 159708 159710 159712 159713 159714 159716 159717 159718 159720 159722 159726 159728 159732 159734 159738 159744 159746 159752 159756 159758 159762 159768 159774 159776 159782 159786 159788 159794 159798 159804 159812 199269
372+628= | 1008-328= | 469×7= |
263×3= | 45÷8= | 52÷7= |