Addition and Subtraction Equalities

183 + 516 ___ 449 + 226 

• = , because both expressions involve addition.

• = , because both expressions have a value of 675.

• ≠ , because both expressions are addition, and the sum of 183+516 is larger than the sum of 449+226.

• ≠ , because both expressions are addition, and the sum of 183+516 is less than the sum of 449+226.

Addition

9+3=

Solve:
246 + 553 = ?

• 313

• 799

• 809

• 307

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

• 472

• 289

• 340

• 198

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

Use mental math to solve.

120 + 42 + 80

Addition

9+1=

Addition

8+2=

Addition

5+8=

Addition

3+10=