Unit 2 Math Review

How can 4x6 also be represented with repeated addition?

• 6 + 6 + 6 + 6 + 6

• 8 + 8

• 4 + 4 + 4 + 4

• 6 + 6 + 6 + 6

What multiplication equation does this array represent?

• 6 x 5 = 20

• 4 x 5 = 20

• 8 x 3 = 20

• 4 x 4 = 20

2x_=14

Mathematical Equivalence

OFF

How many dots are in the array in total?

• 10

• 12

• 15

• 18

Match the following

• 28

• 9x7

• 70

• 4x7

• 63

• 10x7

• 14

• 2x7

• 42

• 6x7

Elizabeth says, "I know 8x4 is 32 because I doubled 8x2=16. Do you agree with her? ​ (a)  

• yes
• no

Laura teaches a swimming class. There are 7 students in each class and she has 4 classes. How many students does Laura teach?

• 11

• 14

• 28

• 30

Bobby went to the donut store and bought the donuts in the picture. Each donut was $3. How much did all the donuts cost?

10 x 8=__

Some friends bought pretzels at the mall. Which option best represents what 3x9 means?

• Total number of pretzels if 3 friends shared 9 pretzels

• Total number of pretzels if 3 friends gave away 9 pretzels each

• Total number of pretzels if 3 friends each bought 9 pretzels

• Total number of pretzels if 3 were shared with 9 friends