问题
解答题
口算:
|
答案
40×6=240, | 56×4=224, | 130×6=780, | 19×5=95, |
13×5=65, | 12×7=84, | 150×2=300, | 230×4=920, |
180×3=540, | 120×4=480, | 500×10=5000, | 140×7=980, |
15×8=120, | 80×9=720, | 210×6=1260, | 16×5=80. |
口算:
|
40×6=240, | 56×4=224, | 130×6=780, | 19×5=95, |
13×5=65, | 12×7=84, | 150×2=300, | 230×4=920, |
180×3=540, | 120×4=480, | 500×10=5000, | 140×7=980, |
15×8=120, | 80×9=720, | 210×6=1260, | 16×5=80. |