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Year 1 Numbers - Order of Numbers
The number 1. Can you add and take away 1 from other numbers?

Year 1 Numbers - Order of Numbers

Put numbers in the right order. Compare, spot the smallest and largest, and line them up from first to last using simple steps and helpful clues.

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(quiz starts below)

Fascinating Fact:

Numbers love queues. Smallest goes first like the shortest penguin in line.

In KS1 Maths, you learn to arrange numbers from smallest to largest and back again. You compare values, look for place-value clues, and use symbols like <, >, and = to decide order.

  • Ascending order: Numbers going up from smallest to largest, for example 3, 7, 12.
  • Descending order: Numbers going down from largest to smallest, for example 12, 7, 3.
  • Compare: To decide which is smaller or larger using symbols like <, >, and =.
What does ascending order mean in Year 1 maths?

Ascending order means the numbers increase. Start with the smallest number and list them so each next number is bigger, like 2, 5, 8, 11.

How do I find the smallest number quickly?

Compare the tens first, then the ones. Fewer tens means smaller. If tens match, the number with fewer ones is smaller.

What is the difference between < and > in maths?

< means “is less than” and > means “is greater than.” For example, 6 < 9 and 12 > 7.

Question 1
What is one more than 77?
88
78
87
77
One more means adding on one by counting up
Question 2
What number is one more than 0?
0
2
10
1
If you start at zero and count up, the first number you come to is one more than zero
Question 3
What is one more than 27?
27
26
28
78
Looking at the last digit is often helpful
Question 4
What is one less than 56?
55
57
45
65
Try to picture the numbers sitting on a number line
Question 5
What is one more than 16?
61
15
17
62
Imagine the number line in your mind and think about which numbers are next to each other
Question 6
What is one less than 21?
20
22
12
2
One less means taking one away from the units digit
Question 7
What is one less than 50?
94
59
40
49
Counting up to get to the given number will help to work out one less
Question 8
What is one more than 79?
97
80
18
8
Counting up out loud can sometimes help
Question 9
What is one less than 100?
9
99
19
101
100 is the last number on a hundred square. 99 comes just before it, so is one less
Question 10
What is one more than 100?
111
110
99
101
One more means adding one more to the units digit
You can find more about this topic by visiting BBC Bitesize - One more and one less within 10

Author:  Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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