三年级-数学-乘法分配率

Flashcard
•
Mathematics
•
3rd - 4th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
什么是乘法分配律?
Back
乘法分配律是指对于任意数a、b和c,a × (b + c) = a × b + a × c。
2.
FLASHCARD QUESTION
Front
用乘法分配律计算:7 x 6。
Back
(7 x 3) + (7 x 3) = 21 + 21 = 42。
3.
FLASHCARD QUESTION
Front
如何用乘法分配律表示6 x 18?
Back
6 x 18 = (6 x 8) + (6 x 10)。
4.
FLASHCARD QUESTION
Front
用乘法分配律计算:4 x 3 + 4 x 5。
Back
(4 x 3) + (4 x 5) = 12 + 20 = 32。
5.
FLASHCARD QUESTION
Front
用乘法分配律计算:5 x 2 + 5 x 5。
Back
(5 x 2) + (5 x 5) = 10 + 25 = 35。
6.
FLASHCARD QUESTION
Front
如何找到缺失的因子:6 x 18 = (6 x ___) + (6 x ___)?
Back
缺失的因子是9和9。
7.
FLASHCARD QUESTION
Front
乘法分配律在解决应用题时的重要性是什么?
Back
乘法分配律可以帮助简化计算,使得复杂的乘法问题更易于解决。
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