7X3=21读作：三乘以七等于二十一是对的。 这是九九乘法表口诀，九九乘法表口诀乘法口诀表是从“一一得一”开始，到“九九八十一”为止，源于乘法口诀，方便乘法计算的简单乘法表

The multiplication of seven times three is equal to twenty-one. We can also express that 7 times 3 equals 21 as follows: What is 7 multiplied by other numbers? Find out what is 7 times 3. …

2022年4月28日 · 7x3 is equal to 21. 7 multiplied by 3 equals 21. Multiplication is a mathematical operation that combines groups of equal numbers to find a total quantity. In this case, you are taking 7...

Follow steps 1-6 to master this fact. This picture and story will help you remember 3 x 7 = 21. © 2025 IXL Learning. All rights reserved.

算式7x3=21可以解决什么问题？ 依题意列式计算7×3提出数学问题解题思路：应用题中关键词为平均一般都是使用除法,使用倍数一般都是使用乘法,比谁多或者比谁少一般都是使用加减法,根据关键词进行应用列式解题过程:7×3

2017年1月4日 · Explain how you would use the commutative property of multiplication to answer 7 ×3. 7x3=21 is the same as doing 3x7=21. This is an example of the commutative property. The commutative property is when you move the numbers around and you get the same answer.

2022年4月28日 · 7x3 is 21 because if you skip count 7s or 3s it will be 21. if it works then that's great!

2020年10月6日 · The conclusion that can be made from the multiplication problem 7x3=21 is: Twenty-one is 7 times the size of 3. This conclusion is obtained when you take the number 7 and multiply it by the number 3 - it yields the product 21.

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正确读法是：七乘以三等于二十一 3X7=21的读法才是：三乘以七等于二十一