72÷9=    42÷7=     54÷9=   56÷8=49÷7=    48÷8=    64÷8=    27÷3=24÷3=    32÷4=    81÷9=    63÷7=72÷9=\:\:\:\:42÷7=\:\:\:\:\:54÷9=\:\:\:56÷8=49÷7=\:\:\:\:48÷8=\:\:\:\:64÷8=\:\:\:\:27÷3=24÷3=\:\:\:\:32÷4=\:\:\:\:81÷9=\:\:\:\:63÷7=

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Worked solution

1. 根据乘法口诀求出各个除法算式的结果

根据乘法口诀求出商:

  • 由 8×9=728 \times 9 = 72 可得 72÷9=872 \div 9 = 8;
  • 由 6×7=426 \times 7 = 42 可得 42÷7=642 \div 7 = 6;
  • 由 6×9=546 \times 9 = 54 可得 54÷9=654 \div 9 = 6;
  • 由 7×8=567 \times 8 = 56 可得 56÷8=756 \div 8 = 7;
  • 由 7×7=497 \times 7 = 49 可得 49÷7=749 \div 7 = 7;
  • 由 6×8=486 \times 8 = 48 可得 48÷8=648 \div 8 = 6;
  • 由 8×8=648 \times 8 = 64 可得 64÷8=864 \div 8 = 8;
  • 由 9×3=279 \times 3 = 27 可得 27÷3=927 \div 3 = 9;
  • 由 8×3=248 \times 3 = 24 可得 24÷3=824 \div 3 = 8;
  • 由 8×4=328 \times 4 = 32 可得 32÷4=832 \div 4 = 8;
  • 由 9×9=819 \times 9 = 81 可得 81÷9=981 \div 9 = 9;
  • 由 9×7=639 \times 7 = 63 可得 63÷7=963 \div 7 = 9。
Answer

72÷9=872÷9=8, 42÷7=642÷7=6, 54÷9=654÷9=6, 56÷8=756÷8=7, 49÷7=749÷7=7, 48÷8=648÷8=6, 64÷8=864÷8=8, 27÷3=927÷3=9, 24÷3=824÷3=8, 32÷4=832÷4=8, 81÷9=981÷9=9, 63÷7=963÷7=9

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