Year 1: One quarter of a group
Part of the Year 1 halves and quarters chapter. Chapter overview · whole chapter on one page · Download worksheet (PDF) · Answers (PDF)
One quarter of a group
A quarter of a group is one of four equal groups. Share the group into four equal groups. The number in one group is the quarter.
Here are 8 stars in four equal groups. Each group has 2 stars, so a quarter of 8 is 2.
Key ideas
- A quarter of a group means four equal groups.
- Count the number in one group.
- Check: four equal groups put together make the whole.
Key words. A quarter is one of four equal parts.
Method. Share 8 stars into 4 equal groups, so every group has the same number.
- Share the stars into 4 equal groups. Every group must have the same number, so give out one at a time.8 stars into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.2 in each group
- Write the answer. 2
Check. Add the groups back together: 2 + 2 + 2 + 2 = 8. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 12 cubes into 4 equal groups, so every group has the same number.
- Share the cubes into 4 equal groups. Every group must have the same number, so give out one at a time.12 cubes into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.3 in each group
- Write the answer. 3
Check. Add the groups back together: 3 + 3 + 3 + 3 = 12. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 16 balls into 4 equal groups, so every group has the same number.
- Share the balls into 4 equal groups. Every group must have the same number, so give out one at a time.16 balls into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.4 in each group
- Write the answer. 4
Check. Add the groups back together: 4 + 4 + 4 + 4 = 16. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Watch out
Watch out: a quarter needs four equal groups, not two. Half of 8 is 4, but a quarter of 8 is 2.
Exam tip
Grown-up tip. Use four plates or cups. Share the things out one at a time, going round the plates. Ask: “How many on each plate?”
Exercise 10E One quarter of a group
Non-calculatorKey words. A quarter is one of four equal parts.
Method. Share 4 apples into 4 equal groups, so every group has the same number.
- Share the apples into 4 equal groups. Every group must have the same number, so give out one at a time.4 apples into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.1 in each group
- Write the answer. 1
Check. Add the groups back together: 1 + 1 + 1 + 1 = 4. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 20 sweets into 4 equal groups, so every group has the same number.
- Share the sweets into 4 equal groups. Every group must have the same number, so give out one at a time.20 sweets into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.5 in each group
- Write the answer. 5
Check. Add the groups back together: 5 + 5 + 5 + 5 = 20. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 12 balls into 4 equal groups, so every group has the same number.
- Share the balls into 4 equal groups. Every group must have the same number, so give out one at a time.12 balls into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.3 in each group
- Write the answer. 3
Check. Add the groups back together: 3 + 3 + 3 + 3 = 12. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 24 things into 4 equal groups, so every group has the same number.
- Share the things into 4 equal groups. Every group must have the same number, so give out one at a time.24 things into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.6 in each group
- Write the answer. 6
Check. Add the groups back together: 6 + 6 + 6 + 6 = 24. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 28 things into 4 equal groups, so every group has the same number.
- Share the things into 4 equal groups. Every group must have the same number, so give out one at a time.28 things into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.7 in each group
- Write the answer. 7
Check. Add the groups back together: 7 + 7 + 7 + 7 = 28. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 40 things into 4 equal groups, so every group has the same number.
- Share the things into 4 equal groups. Every group must have the same number, so give out one at a time.40 things into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.10 in each group
- Write the answer. 10
Check. Add the groups back together: 10 + 10 + 10 + 10 = 40. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 44 things into 4 equal groups, so every group has the same number.
- Share the things into 4 equal groups. Every group must have the same number, so give out one at a time.44 things into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.11 in each group
- Write the answer. 11
Check. Add the groups back together: 11 + 11 + 11 + 11 = 44. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 36 grapes into 4 equal groups, so every group has the same number.
- Share the grapes into 4 equal groups. Every group must have the same number, so give out one at a time.36 grapes into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.9 in each group
- Write the answer. 9
Check. Add the groups back together: 9 + 9 + 9 + 9 = 36. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Key words. A quarter is one of four equal parts.
Method. Share 8 beads into 4 equal groups, so every group has the same number.
- Share the beads into 4 equal groups. Every group must have the same number, so give out one at a time.8 beads into 4 groups
- Count how many are in one group. All the groups are the same, so one group gives the answer.2 in each group
- Write the answer. 2
Check. Add the groups back together: 2 + 2 + 2 + 2 = 8. ✓
Watch out. Every group needs the same number. Do not give one group more than the others.
Method. Find half of 8 and a quarter of 8, then compare them.
- Find half of 8. Share 8 into two equal groups.4 + 4 = 8
- Find a quarter of 8. Share 8 into four equal groups.2 + 2 + 2 + 2 = 8
- Compare the two numbers. The bigger number is the bigger share.4 is more than 2
- Write the answer. Half of 8 is more.
Check. Half of 8 is 4 and a quarter of 8 is 2, so half is the bigger share. ✓
Watch out. The bigger the number of equal parts, the smaller each part is.
Method. Equal shares have the same number of things on every plate.
- Count the things on each plate. We need to know how many are on each plate.3, 3, 3, 4
- Compare the numbers. Equal shares have the same number on every plate.The numbers are not the same.
- Decide. No. 13 things cannot be shared into 4 equal plates.
Check. Add the plates together: 3 + 3 + 3 + 4 = 13. ✓
Watch out. Equal shares must have the same number on every plate.
Method. Find a quarter of 8, and half of 4, then compare them.
- Find a quarter of 8. Share 8 into four equal groups.2 in each group
- Find half of 4. Share 4 into two equal groups.2 in each group
- Compare the two answers. Both answers are the same.2 = 2
- Write the answer. Yes. Both are 2.
Check. Two groups of 2 make 4, and four groups of 2 make 8. ✓
Watch out. Check the groups, not just the numbers.