Grade 1 · ages 6 to 7
Add and subtract to 20
Bea the bunny puts groups together and takes them apart. Learn number bonds, make 10, doubles and what the equals sign means.

Try it first
Play with these before the lessons. They are free and open now.
Number bonds
Split a number into two parts. Slide to change them.
Balance scale
Add blocks until both sides weigh the same.
The 8 lessons
Each lesson has a picture to learn from, two worked examples and five practice questions.
- Put two groups togetherAdding means joining · Number bonds5 questions
- Take some awaySubtracting means taking away5 questions
- Number bonds to 10Two parts make a whole · Number bonds5 questions
- Make 10 to add8 + 5 is 10 + 3 · Ten frame5 questions
- Doubles and near doubles6 + 6 helps with 6 + 75 questions
- What the = sign meansBoth sides are the same · Balance scale5 questions
- Find the missing number4 + ? = 9 · Balance scale5 questions
- Fact familiesThree numbers, four facts · Number bonds5 questions
More courses
Counting to 100
Count, compare and skip count.
Ages 5 to 6Tens and ones
Place value to 100.
Ages 6 to 8