Lesson 4 Check Multiply Whole Numbers

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A school needs to move 218 school desks to a new building. Each desk weighs 26 pounds. What is the total weight of all the desk that need to be moved?

Which expressions are equivalent to 143 x 17? Check all expressions that are equivalent.

• 1,000 + 700 + 400 + 280 + 30 + 21
• (100 x 17) + (40 x 17) + (3 x 17)
• (143 x 10) + (143 x 7)
• 143 x (1+7)
• (1 x 10) + (1 x 7) + (4 x 10) + (4 x 7) + (3 x 10) + (3 x 7)

A stockroom at a toy factory has 115 shelves. Each shelf has 15 cases of toys. How many cases of toys are there in all?

Examine this multiplication problem. Which expression shows the numbers that are multiplied to find the partial product 286,020?

• 4,000 x 70
• 4,000 x 73
• 4,086 x 70
• 4,086 x 73

An office supply company sells boxes of 24 crayons. The company's warehouse has 1,185 boxes of crayons. How many crayons are in the warehouse?