One More, One Less
Practice identifying numbers that are one more or one less than a given number.
Includes
Standards
Topics
One More, One Less
Name:
Date:
Score:
Read each question carefully and fill in the blanks or circle the correct answer.
1. One more than 5 is .
2. One less than 10 is .
3. One more than 12 is .
4. One less than 7 is .
5. One more than 19 is .
6. Which number is one more than 8?
7
9
10
8
7. Which number is one less than 15?
14
16
13
15
8. One more than 3 is 4.
True
False
9. One less than 20 is 18.
True
False
10. Look at the number line below. What number is one more than the highlighted number?
11. Look at the number line below. What number is one less than the highlighted number?
Related Worksheets
Plotting Numbers on a Number Line
Practice plotting single-digit numbers on a number line for Grade 1 math students.
Numbers in Word Form
A first-grade math worksheet focused on writing numbers in word form.
Counting by Ones Worksheet
Practice counting by ones with numbers up to 20, including number lines and fill-in-the-blanks.
Counting Objects Worksheet
A Grade 1 math worksheet focused on counting various objects to build number sense.
Ten More, Ten Less
Practice identifying numbers that are ten more or ten less than a given number, using number lines and mental math strategies.
Partner Numbers to 10
A Grade 1 math worksheet focusing on finding partner numbers that add up to a given sum, primarily targeting sums up to 10.
Writing Three-Digit Numbers
Practice writing three-digit numbers in standard form, word form, and expanded form for first graders.
Writing Numbers in Words (Grade 1)
Practice writing numbers from one to twenty in word form for first graders.