Addition and Subtraction Strategies

Use a strategy to solve:

8 + 3 =

• 11

• 14

• 5

• 9

Solve this doubles fact:

6 + 6 =

• 12

• 10

• 36

• 18

Solve this doubles fact:

9 + 9 =

• 20

• 15

• 18

• 81

James have 90 marshmallows in the jar. He adds 382 more. How many marshmallows are now in the jar? 

• 472

• 289

• 340

• 198

4+12=

• 16

• 17

• 15

• 14

5+5=

• 10

• 11

• 12

• 13

5+3=

Which operations would you do - For Halloween Debby and her sister combined the candy they received. Debby had thirty-two pieces of candy while her sister had forty-two. If they ate thirty-five pieces the first night, how many pieces do they have left?

• add then divide

• add then subtract

• multiply then subtract

• divide then add

Juan has 253 marbles. Ella has 38 more marbles than Juan. How many marbles does Ella have? Ella has _____ marbles.

2+2=

• 4

• 5

• 6

• 7