 # KS1 Maths Quiz - Year 1 Numbers - Counting in Tens (Questions)

This quiz addresses the requirements of the National Curriculum KS1 Maths and Numeracy for children aged 5 and 6 in year 1. Specifically this quiz is aimed at the section dealing with counting in tens.

Counting forward and back in tens is a really useful skill. It is one of the first kinds of number patterns children encounter and a good understanding will help with lots of other areas of development, including recognising sequences, counting forward and back quickly, and ten times table recall.

1. What is the next number in this sequence:
10, 20, 30, 40, __
 [ ] 50 [ ] 41 [ ] 5 [ ] 500
2. What are the next two numbers in this sequence:
20, 30, 40, 50, __, __
 [ ] 55, 60 [ ] 60, 70 [ ] 6, 7 [ ] 51, 52
3. What are the next three numbers in this sequence:
20, 30, 40, 50, 60, __, __, __
 [ ] 65, 70, 75 [ ] 61, 62, 63 [ ] 7, 8, 9 [ ] 70, 80, 90
4. Which numbers are missing from this sequence:
10, __, 30, 40, __, 60
 [ ] 2 and 5 [ ] 11 and 41 [ ] 20 and 50 [ ] 15 and 45
5. Which numbers are missing from this sequence:
40, __, 60, 70, __, 90, __
 [ ] 45, 75 and 95 [ ] 5, 8 and 10 [ ] 41, 71, 91 [ ] 50, 80 and 100
6. Numbers in the ten times table always end with __?
 [ ] 10 [ ] 0 [ ] 5 [ ] 1
7. Which of these sets are all part of the ten times table?
 [ ] 10, 15, 20, 25 [ ] 20, 50, 60, 80 [ ] 12, 13, 14, 15 [ ] 20, 21, 22, 23
8. What is happening in this sequence:
60, 50, 40, 30, 20?
 [ ] The numbers are getting bigger each time [ ] The numbers are going down in tens instead of up [ ] The numbers are going up in twos [ ] The numbers are all odd
9. Continue this sequence:
60, 50, 40, 30
 [ ] 12, 11, 10 [ ] 20, 10, 0 [ ] 40, 50, 60 [ ] 29, 28, 27
10. Which number should come at the end of this sequence:
50, 60, 70, 80, 90, __?
 [ ] 19 [ ] 91 [ ] 10 [ ] 100 KS1 Maths Quiz - Year 1 Numbers - Counting in Tens (Answers)
1. What is the next number in this sequence:
10, 20, 30, 40, __
 [x] 50 [ ] 41 [ ] 5 [ ] 500
50 is ten more than 40. This sequence increases in tens
2. What are the next two numbers in this sequence:
20, 30, 40, 50, __, __
 [ ] 55, 60 [x] 60, 70 [ ] 6, 7 [ ] 51, 52
This sequence is increasing in tens
3. What are the next three numbers in this sequence:
20, 30, 40, 50, 60, __, __, __
 [ ] 65, 70, 75 [ ] 61, 62, 63 [ ] 7, 8, 9 [x] 70, 80, 90
Each number is ten more than the one before it
4. Which numbers are missing from this sequence:
10, __, 30, 40, __, 60
 [ ] 2 and 5 [ ] 11 and 41 [x] 20 and 50 [ ] 15 and 45
Looking at the numbers on either side of the missing number might help
5. Which numbers are missing from this sequence:
40, __, 60, 70, __, 90, __
 [ ] 45, 75 and 95 [ ] 5, 8 and 10 [ ] 41, 71, 91 [x] 50, 80 and 100
The number before the missing one is ten less
6. Numbers in the ten times table always end with __?
 [ ] 10 [x] 0 [ ] 5 [ ] 1
Multiples of ten always end with '0'
7. Which of these sets are all part of the ten times table?
 [ ] 10, 15, 20, 25 [x] 20, 50, 60, 80 [ ] 12, 13, 14, 15 [ ] 20, 21, 22, 23
Numbers in the ten times table all end with a '0'
8. What is happening in this sequence:
60, 50, 40, 30, 20?
 [ ] The numbers are getting bigger each time [x] The numbers are going down in tens instead of up [ ] The numbers are going up in twos [ ] The numbers are all odd
Each time, the number becomes ten less than the one before it
9. Continue this sequence:
60, 50, 40, 30
 [ ] 12, 11, 10 [x] 20, 10, 0 [ ] 40, 50, 60 [ ] 29, 28, 27
Each number is ten less than the one before it
10. Which number should come at the end of this sequence:
50, 60, 70, 80, 90, __?
 [ ] 19 [ ] 91 [ ] 10 [x] 100
100 is ten more than 90