GRADE 3: Week 3 Mental Math

4 + _____ = 12

• 5

• 7

• 8

• 3

Pick the even number: 39, 61, 7, 24, 11

• 39

• 24

• 11

• 7

There are 240 children in a school. 140 of them went swimming. How many remained in the school?

• 100

• 99

• 101

• 98

9 more than 16 is what?

• 21

• 30

• 25

• 15

What must be added to 34 to make 45?

• 11

• 12

• 10

• 14

8 + 14 + 6 =

• 27

• 28

• 26

• 29

If 60k is divided equally between two boys, how much does each boy get?

• 30k

• #30

• 40k

• 31k

Which is bigger,  $\frac{1}{2}$  or  $\frac{1}{4}$  

•  $\frac{1}{2}$  

•  $\frac{1}{4}$  

• none

What number is 2 greater than 399?

• 397

• 400

• 401

• 399

How many minutes are in 1 hour?

• 59 minutes

• 60 minutes

• 61 minutes

• 30 minutes