Grade 3 math · C.2 · Expanded Form and Standard Form
Write numbers in standard form to 999
Example: 400 + 90 + 1 = 491
See worked examples
Write 200 + 70 + 3 as a number.
Answer: 273
Write 600 + 60 + 2 as a number.
Answer: 662
Write 600 + 30 + 1 as a number.
Answer: 631
Tip: Example: 400 + 90 + 1 = 491
Curriculum
Common Core: 2.NBT.A.1, 2.NBT.A.3
On paper: this skill is in the printable pack Grade 3 Common Core Math: Number and Operations, with an answer key.
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