Grade 3 math · B.4 · Find the Unknown
Find the missing number: addition and subtraction to 1,000
Adding and subtracting. Every number is 1000 or less.
See worked examples
□ − 11 = 937 What number goes in the box?
Answer: 948
□ − 8 = 951 What number goes in the box?
Answer: 959
□ + 599 = 982 What number goes in the box?
Answer: 383
Tip: Adding and subtracting. Every number is 1000 or less.
Curriculum
Common Core: 3.OA.A.4
On paper: this skill is in the printable pack Grade 3 Common Core Math: Patterns and Algebraic Thinking, with an answer key.
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