Grade 3 - Arithmetic: Understanding and writing numbers
Standard 3.ARTU.1.1.6 - Simplify both sides of the equation. Fill in the missing number with sums up to 1000 to make the equation true.
Included Skills: Addition
Identifies equivalent expressions (e.g. 52 = 40 + 12, 25 + 27 = 40 + 12, 52 = 104 ÷ 2)