800+500= | 2100﹣900= | 54÷9= | 35÷7= |
150﹣80= | 1千克﹣300克= | 72÷8= | 680﹣600= |
80÷9= |
300+500= |
180+60= |
900-400= |
460-80= |
70+500= |
1400-400= |
2000+5000= |
1200-800= |
120-70= |
70-24= |
34+52= |
65+35= |
4800+600= | 1300-400= | 46+11= | 35÷6= | 7+1×8= |
32÷8= | 35÷7+8= | 24×0= | 369+107≈ | 607-396≈ |
6×8= | 1300-700= | 57+25= | 460+70= | 80-9= |
72÷9= | 28÷7= | 825-600= | 93-48= | 530+70= |