1.
连一连。
①3.4×2+0.3
②0.4×5-0.5 | ③8×0.25×4
| |
8 | 7.1 | 1.5
| 131
②352+279 | 507
③630+279 | 778
④156+351 | 638
⑤43+88 | 803
| ②31×2+30×2+26 | 800 ③25×(8×4) | 148 ④7×21+1 |
| 288 | 12
| |
| |
96 × (335-332) | (180-120)÷ 30 × 6 | 900÷(90÷2)
| ②368-125-99 | ③67+35-47 | | A.256-192-9 | B.95-80+56 | C.73+129-58
|