Gr3_Mth_DOL-9.25-3.5, 3.4b & 3.4a

Dominic washed cars on the weekend to earn money for a skateboard.

He earned $75 on Saturday and $135 on Sunday.

Which strip diagram can be used to find the total amount of money Dominic earned over the weekend?

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Joseph had 125 baseball cards. He gave gave his brother 75 baseball cards for his birthday. What is the best estimate of the number of baseball cards Joseph has now? Choose the correct answer from the drop-down menu to complete the statement. Joseph has about ​ (a)   baseball cards.

• 50
• 210
• 190
• 180

Ava has downloaded 317 songs to her computer.

She moves 69 songs to her electronic tablet.

Which equation could NOT be used to find the number of songs left on Ava's computer?

• 317 – 69 = __

• 317 + 69 = __

• 317 – __ = 69

• 69 + __ = 317

The flower shop had 320 roses. It sold 175 of these roses.

How many roses does the flower shop have now?

Choose the correct answer from the drop-down menu to complete the statement. The flower shop has ​ (a)   flowers.

• 255

• 495

• 145
• 135

Larissa has 220 songs on her playlist. One hundred thirty-nine of these are jazz songs. The rest of the songs are classical. How many songs on Larissa’s playlist are classical?

Mathematical Equivalence

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