🔢 Mathematics · Addition & Subtraction
Missing number problems (age 7+)
Solve addition and subtraction problems including missing-number problems, using number facts, place value, and more complex methods
Typical age: 7–8 years
“Can your child work out sums with a hidden number — like '? − 38 = 24' or '53 + ? = 91' — by thinking carefully about what the equation is asking?”
0 / 3 mastered