Numbers and place value · Ages 6–7

Numbers to 100 (focused practice) worksheet

Part of: Numbers to 100

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Numbers and place value · Ages 6–7

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Write each answer in the space. For word problems, show your working and write a sentence answer.

1.Count the tens rods and the ones cubes. What number is it?
Answer:
2.Count on: 79, 80, , 82
Answer:
3.Count back: 51, 50, , 48
Answer:
4.The number just before 95 is and the number just after is .
Fill in each blank
Answer:
5.Count back: 100, 99, , 97
Answer:
6.The number just before 57 is and the number just after is .
Fill in each blank
Answer:
7.Count on: 58, 59, , 61
Answer:
8.What number is the arrow pointing to on the number line?
Answer:

13.A pack holds 10 straws. Mum buys 3 packs and 4 more: straws in all, with in the tens place and in the ones.
Fill in each blank
Working:
Answer:
14.A box holds 10 pencils. Chi-keung has 9 boxes and 8 more pencils. How many pencils does Chi-keung have?
Working:
Answer:
15.Chi-keung lives on floor 21, and a friend lives one floor below. Which floor does the friend live on?
Working:
Answer:
16.91 children get into twos. How many children are left over?
Working:
Answer:
17.Ming lives on floor 60, and a friend lives one floor below. Which floor does the friend live on?
Working:
Answer:
18.A box holds 10 pencils. Ming has 2 boxes and 8 more pencils. How many pencils does Ming have?
Working:
Answer:

Show the answers and working

Numbers to 100 (focused practice) worksheet: Answers and working

1. 71
Count the tens rods first, in tens; then count the ones cubes.
7 rods are 7 tens; with 1 ones that is 71.
2. 81
Counting on adds 1 each time. Watch the ones: once they go past 9, the tens go up 1.
1 more each time; past 9 in the ones comes the next ten: after 80 comes 81.
3. 49
Counting back takes 1 each time. Watch the ones: below 0 in the ones, you drop back a ten.
1 less each time; below a 0 in the ones you go back a ten and the ones become 9: after 50 comes 49.
4. 94, 96
The number just before 95 is 1 less, and the one just after is 1 more.
Just before is 1 less, 94; just after is 1 more, 96.
5. 98
Counting back takes 1 each time. Watch the ones: below 0 in the ones, you drop back a ten.
1 less each time; below a 0 in the ones you go back a ten and the ones become 9: after 99 comes 98.
6. 56, 58
The number just before 57 is 1 less, and the one just after is 1 more.
Just before is 1 less, 56; just after is 1 more, 58.
7. 60
Counting on adds 1 each time. Watch the ones: once they go past 9, the tens go up 1.
1 more each time; past 9 in the ones comes the next ten: after 59 comes 60.
8. 58
Find the nearest numbered mark to the arrow, then count the steps on or back to it.
Start at the nearest numbered mark and count steps on or back: 58.

9. C. 78
The first part of “seventy-eight” tells you the tens and the last part the ones. The tens go on the left.
“seventy-eight” is 7 tens and 8 ones: 7 in the tens place, 8 in the ones.
10. C. 42
The first part of “forty-two” tells you the tens and the last part the ones. The tens go on the left.
“forty-two” is 4 tens and 2 ones: 4 in the tens place, 2 in the ones.
11. False
Look only at the ones digit of 61: is it 0, 2, 4, 6 or 8, or 1, 3, 5, 7 or 9?
Look only at the ones digit, 1: 0, 2, 4, 6 or 8 means even.
12. False
Look only at the ones digit of 75: is it 0, 2, 4, 6 or 8, or 1, 3, 5, 7 or 9?
Look only at the ones digit, 5: 0, 2, 4, 6 or 8 means even.

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. 34, 3, 4
A pack of 10 is a ten, so 3 packs are 3 tens. The 4 extra straws are 4 ones.
3 packs are 3 tens, with 4 ones: 34, 3 in the tens and 4 in the ones.
14. 98 pencils
A box of 10 is a ten, so 9 boxes are 9 tens. The 8 extra are the ones.
9 boxes are 9 tens; with 8 ones that makes 98.
15. 20
One floor below is 1 less. Count back one from 21; if the ones are 0, drop back a ten.
One floor below is 1 less: before 21 comes 20.
16. 1 child
Whether anyone is left over in twos depends only on whether 91 is odd or even.
Look at the ones digit of 91: even leaves 0 over, odd leaves 1.
17. 59
One floor below is 1 less. Count back one from 60; if the ones are 0, drop back a ten.
One floor below is 1 less: before 60 comes 59.
18. 28 pencils
A box of 10 is a ten, so 2 boxes are 2 tens. The 8 extra are the ones.
2 boxes are 2 tens; with 8 ones that makes 28.

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