Number Bonds

What your child learns

• Splitting a number into two parts and putting two parts together (number bonds)
• Number bonds within 5, then up to 10
• Counting dots to find the missing part, then working it out without dots
• Finding all the ways to make a number, like 6 is 1 and 5, 2 and 4, 3 and 3…

How to play

1. The number in the middle of the flower is the whole; the two numbers below are its parts. The box with a question mark is missing.
2. Tap one of the three number cards below, or drag it into the question mark. On a computer, number keys work too.
3. Pick the right one and the flower blooms and the bond is read aloud, like "five is made of two and three".
4. In "find all the ways" rounds, fill in one flower after another until every way is found.

For parents

• At first the whole has dots in two colors, one per part: your child just counts the dots of the other color.
• As your child gets answers right, the dots fade away, numbers grow to 10, and questions about the whole appear ("two and three together make what?").
• Try it with real things too, like sharing 5 candies between two hands. After two wrong tries, the right card blinks as a hint.
• Progress and difficulty are saved on this device.