Numbers and place value · Ages 7–8

Counting on and back, odd and even, to 10000 worksheet

Part of: Three- and four-digit numbers

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Numbers and place value · Ages 7–8

Numsprite
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Name:Date:Score:／48

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

13.A pile of raffle tickets runs from number 867 to number 881, none missing or repeated. There are tickets, and of them have even numbers.
Fill in each blank
Working:
Answer:
14.A book's pages are numbered from 1. The front of each sheet is an odd page and the back is the next page. What page is on the back of page 847?
Working:
Answer:
15.Houses on this side of the street have odd numbers, in order. Tsz-hin lives at number 857. What is the next house number?
Working:
Answer:
16.Seats in a row at a concert hall are numbered in order, starting at 503. Ka-yan sits in the 2nd seat from the start of the row. What is the seat's number?
Working:
Answer:
17.A pile of raffle tickets runs from number 972 to number 979, none missing or repeated. There are tickets, and of them have even numbers.
Fill in each blank
Working:
Answer:
18.A book's pages are numbered from 1. The front of each sheet is an odd page and the back is the next page. What page is on the back of page 397?
Working:
Answer:

Show the answers and working

Counting on and back, odd and even, to 10000 worksheet: Answers and working

1. 600
Counting back takes 1 each time. Watch what happens when the tens and ones are both 0.
Counting back, 1 less each time: after 601 comes 600.
2. 401
Counting on adds 1 each time. Watch what happens when the tens and ones are both 9.
Counting on, 1 more each time: after 400 comes 401.
3. 801
Counting on adds 1 each time. Watch what happens when the tens and ones are both 9.
Counting on, 1 more each time: after 800 comes 801.
4. 399
Counting back takes 1 each time. Watch what happens when the tens and ones are both 0.
Counting back, 1 less each time: after 400 comes 399.
5. 854
Adding 100 changes just one place. Does the 100 go on the ones, the tens or the hundreds?
100 more: 754 + 100 = 854.
6. 7626
Taking 100 away changes just one place. Which place does the 100 come off?
100 less: 7726 − 100 = 7626.
7. 404
Adding 100 changes just one place. Does the 100 go on the ones, the tens or the hundreds?
100 more: 304 + 100 = 404.
8. 7277
Taking 100 away changes just one place. Which place does the 100 come off?
100 less: 7377 − 100 = 7277.
9. 7798
Count on from 7797 and watch the ones digit: stop at the first one that is even.
Count on from 7797: the first number ending in 0, 2, 4, 6 or 8 is 7798.
10. 6000, 5999
Count back 1 at a time from 6001. Watch what happens once the last three digits are all 0.
1 less each time: 6001, 6000, 5999, 5998.

11. True
Look only at the ones digit of 5151: is it 1, 3, 5, 7 or 9, or 0, 2, 4, 6 or 8?
Look only at the ones digit, 1: 1, 3, 5, 7 or 9 means odd.
12. False
Look only at the ones digit of 8258: is it 1, 3, 5, 7 or 9, or 0, 2, 4, 6 or 8?
Look only at the ones digit, 8: 1, 3, 5, 7 or 9 means odd.

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

13. 15, 7
From 867 to 881, counting both. Work out how many tickets there are, then pick out the even ones.
From 867 to 881 is 15 numbers; checking the ones digits, 7 are even.
14. 848
The back of the sheet is simply the next page. Which page comes straight after 847?
The back is the next page: 1 more than 847, page 848, an even page.
15. 859
Odd numbers come every other number. How much more than 857 is the next odd number?
Odd numbers come every other number: the next after 857 is 859.
16. 504
The 1st seat is 503, and each one after is 1 more. How many more than the 1st is the 2nd?
The 1st is 503 and each one after is 1 more: the 2nd is 504.
17. 8, 4
From 972 to 979, counting both. Work out how many tickets there are, then pick out the even ones.
From 972 to 979 is 8 numbers; checking the ones digits, 4 are even.
18. 398
The back of the sheet is simply the next page. Which page comes straight after 397?
The back is the next page: 1 more than 397, page 398, an even page.

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