问题
解答题
口算.
|
答案
3214-999=2215, | 786+99=885, | 17×7=119, | 145+24+55=224, | 289-77-23=189, | 64+36÷4=73, |
27÷(3×3)=3, | 14×6÷2=42, | 550-(48+2)=500, | 16×2÷16×2=4, | 70-70÷7=60, | 0×16+20=20. |
口算.
|
3214-999=2215, | 786+99=885, | 17×7=119, | 145+24+55=224, | 289-77-23=189, | 64+36÷4=73, |
27÷(3×3)=3, | 14×6÷2=42, | 550-(48+2)=500, | 16×2÷16×2=4, | 70-70÷7=60, | 0×16+20=20. |