Find How Many More in a Comparison
Make matching pairs between the two supplied counts.
About 15 minutes, plus any extended practice
Supplied materials
- Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
- Supplied worked-case record: Mia has 12 cards and Jo has 7.
- All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.
Learn the idea
A comparison asks about the difference between two groups, not their combined total. Match one object from each group. The unmatched objects in the larger group show how many more it has. A subtraction sentence records this difference.
Make matching pairs between the two supplied counts. Count what remains unmatched in the larger group or subtract the smaller amount from the larger. State the answer as how many more, with the group named.
Use matching pairs to see the difference. Together and how many more ask different questions. Draw two aligned rows so matching pairs line up vertically.
- Draw two aligned rows so matching pairs line up vertically.
- Follow the worked example. Point to each number or shape feature and say what it tells you.
- Make matching pairs between the two supplied counts.
- Try the question and then the three practice questions. Check your answers and explain any change you make.
See the method in action
Mia has 12 cards and Jo has 7. Seven pairs use all of Jo’s cards and seven of Mia’s. Five of Mia’s cards remain unmatched, so Mia has 5 more. Adding 12+7 would answer how many they have together instead. Use matching pairs to see the difference. Together and how many more ask different questions. Draw two aligned rows so matching pairs line up vertically.
Check your reasoning
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Helpful tips
- Use matching pairs to see the difference.
- Together and how many more ask different questions.
See the answer and explanation
6
Match the smaller group first; the unmatched remainder is the difference. The result is 6.
Take it further
Compare 16 and 9 cards. Expected: the larger group has 7 more.
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More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
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Check the subject sources
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