Unit 3 Math Review

743 - 254 = ____

• 997

• 379

• 489

335 + 543 =

• 878

• 208

• 778

97- ___ = 44

• 141

• 53

• 133

63 + ____ = 162

• 89

• 225

• 99

Jesse had 74 stickers. He gave 4 to his little sister and then 23 to his brother. He drew the following number line to show how many stickers he gave away. Which number sentence represents how Jesse used the number line to show how many stickers he had left?

• 74 - 4 - 23 = 47

• 74 - 7 - 23 = 44

• 74 + 4 + 23 = 101

The students were at P.E. for 48 minutes, Art for 30 minutes, and then had a 6 minute restroom break. Which number sentence represents the number line for how long the students were at P.E, Art and the restroom?

• 48 + 30 + 10 = 88

• 48 + 30 + 6 = 84

• 48 + 25 + 11 = 84

A student brought her school supplies on the first day of school. She brought 8 pencils, 3 rulers, 2 pens and 5 erasers. Which number sentence could be used to find how many supplies she brought in all?

• 8 + 4 + 3 + 5 = 20

• 8 + 3 + 4 + 6 = 21

• 8 + 3 + 2 + 5 = 18

Marcus had 5 cookies. Mary had 3. Which number sentence represents the strip diagram to find out how many more cookies Marcus has than Mary?

• 3 + 5 = 8

• 5 + 3 = 8

• 5 - 3 = 2

• 5 - 2 = 4