Primary 1 Math · Whole Numbers
Addition and subtraction
264 questions in 18 sets
Quick practice
Short questions. Type your answers and press Check.
2-digit numbers, no renaming
Within 100, with renaming
Word problems
Longer questions with step-by-step solutions.
Word problems · Set 1
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 2
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 3
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 4
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 5
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 6
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 7
Story sums: adding, taking away, finding the difference and more.
Word problems · Set 8
Story sums: adding, taking away, finding the difference and more.
What this topic covers
- Add and subtract within 100
- Add three 1-digit numbers
- Mental sums within 20
- Addition and subtraction word problems