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Checking Multiplication

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Checking Multiplication

Q 1: To check the multiplication for 68x37=2516 you
37x68=2516
37+37+37+37+..............68times
68+68+68+68+..............37times

 Q 2: There are different ways to check multiplication. Choose the correct answer.
Repeated addition which can be tedious large numbers
all the other answers
Estimation lets you know if your answer is "about right"
changing the order of factors and multiplying again

Q 3: To check multiplication by estimation, round each factor to its greatest place value and then multiply. First round each factor DOWN and multiply. Then round each factor UP and multiply. The original product should fall between the two estimated products.
False
True

 Question 4: This question is available to subscribers only!

Question 5: This question is available to subscribers only!

 Question 6: This question is available to subscribers only!


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