5th grade math review

What are the factors of 50?

• 1,2,5,10,25,50

• 1,3,5,76

• 1,50

• 25,2

What is a factor?

• numbers you can multiply to get a product

• the answer to a problem

What are MULTIPLES?

• the numbers you use to get an answer

• when you multiply

• it is like skip counting; 3, 6, 9, 12, 15, 18...

What is a multiple of 10?

• 10,20,30,40,50,60,70,80...

• 5, 2

• 5, 10 , 15, 20

which of the following is an array for the multiplication problem: 2 x 6

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• . . . . . . . .

which of the following is an array for 5 x 4?

• • - - - - -

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• • - - -

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Does this equation require regrouping? 92 -9

• YES

• NO

This equation does NOT require regrouping. True or false? 89-4

• true

• false

Round 89 to the nearest tens.

• 90

• 80

• 70

• 100

Round 88 to the nearest tens

• 80

• 90

• 100