0928 math

An art teacher had 736 crayons. • She threw away 197 broken crayons. • Then she bought 150 more crayons. Which equation shows how to find the number of crayons the art teacher has now?

• 736 - 197 - 150 =

• 736 - 197 + 150 =

• 736 + 197 + 150 =

• 736 + 197 - 150 =

• $75 + $52 =

• $75 + $23 =

• $75 - $23 =

• $52 - $23 =

Rita had two boxes of ribbons. • She had 37 large ribbons in the first box. • She had 56 small ribbons in the second box. • She gave 28 of the large ribbons to her sister. Which number sentence can be used to find the number of ribbons Rita had left in the two boxes?

• 56 + 28 + 37 =

• 37 - 28 + 56 =

• 37 + 28 - 56 =

• 56 + 28 - 37 =

There were 25 people in a library. Some people left the library and went home. Then there were 13 people remaining in the library. Which number line represents one way to determine the number of people who left the library?

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