LEARN · PRACTISE · DISCOVER

Explore Fact Families

Read at your own pace. Try the practice, then continue your course.

Connect addition and subtraction facts that use the same three numbers to show how the operations are related.

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THE CURIOSI · EXPLORE & TRY

Explore the picture together. Open each numbered card for a little help.

Look at each counter or step. Open the explanations to connect the picture and the equation.

1Parts: 5 and 7

Five and seven are the two parts.

2Whole: 12

Both 5 + 7 and 7 + 5 equal twelve.

3Related subtraction

Starting with twelve, taking away five leaves seven; taking away seven leaves five.

Count carefully and explain your steps. Use objects or fingers whenever they help.

Show the whole made by the parts 5 and 7. Tap a box to add a counter; tap it again to remove it. Each frame holds ten.

0 counters selected.

Choose one answer for each question, then check. Practice results stay on this page and do not change course completion.

1. Which fact belongs with 5 + 7 = 12? 12 + 5 = 7 12 − 5 = 7 12 − 5 = 8

2. Which is the whole in the family 6, 9, 15? 15 9 6

3. Which addition fact switches the parts in 8 + 4 = 12? 12 + 4 = 8 8 + 12 = 4 4 + 8 = 12

Read the answer explanations

Ask an adult to read the instructions with you. Use large safe counters or drawings; take a break whenever you need one.