Algebra · Challenge 12 of 25 · about 5 min
Use a Known Fact
Grow a known multiplication fact using tens and its related division fact.
Year 4 challenge progress
0 of 25 complete
1 Read
Your challenge
You know 7 × 8 = 56. Use this fact to complete 70 × 8 = __ and 560 ÷ 8 = __.
Take your time. Your answer is checked only when you choose Check Answer.
Curriculum details
- Curriculum code
- VC2M4A02
- Strand
- Algebra
- Focus
- Use multiplication and related division facts to calculate with larger numbers.
2–5 Notice · Build · Move · Connect
Interactive visual
An interactive Grow the fact family model is ready. Choose Show Visual Trick to reveal and hear one mathematical change at a time.
Visual Trick
Grow the fact family
Seven tens multiplied by 8 makes 56 tens.
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Step 1
Build a fact-family triangle with 7, 8 and 56.
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Step 2
Transform 7 ones into 7 tens.
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Step 3
Show 7 tens × 8 as 56 tens, or 560.
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Step 4
Reverse the relationship to show 560 ÷ 8 = 70.
6 Solve
Your answer
7 Check
Worked explanation
Why the answer makes sense
- The known fact is 7 × 8 = 56.
- Seventy is 7 tens, so 70 × 8 is 56 tens, or 560.
- The related division fact reverses the multiplication: 560 ÷ 8 = 70.
Challenge complete
This counts as one completed curriculum item. You can replay the model or review it again anytime.