问题
解答题
口算
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答案
3×3=9; | 2×5=10; | 2×8=16; | 1×9=9; | 4×4=16; |
5×9=45; | 6×7=42; | 49÷7=7; | 4×8=32; | 36-6=30; |
7×9=63; | 6×8=48; | 4×7=28; | 56÷7=8; | 3×7=21; |
17+42=59; | 59-18=41; | 32÷4=8; | 64÷8=8; | 36÷9=4. |
口算
|
3×3=9; | 2×5=10; | 2×8=16; | 1×9=9; | 4×4=16; |
5×9=45; | 6×7=42; | 49÷7=7; | 4×8=32; | 36-6=30; |
7×9=63; | 6×8=48; | 4×7=28; | 56÷7=8; | 3×7=21; |
17+42=59; | 59-18=41; | 32÷4=8; | 64÷8=8; | 36÷9=4. |