Students count, recognize, write, and represent whole-number quantities from 0 through 100, including one-to-one counting of objects, zero, counting forward from any number through 120, and counting backward from 20 or 100 to 0. They compose, decompose, and identify two-digit numbers through 99 as tens and ones, understand that ten ones make one ten, and count by 2s, 5s, and 10s through 100. They compare and order quantities and numerals through 100, identify numbers before, after, and between within 0–120, locate missing and given numbers on number lines, recognize odd and even quantities through 20, and estimate collections of about 20 or fewer objects.
On this page:
- Master skills like “Count by 2s”, “Count by 5s”, and “Count by 10s” with unlimited, free practice problems
- Download (or modify) free worksheets on Whole Numbers you can use at home or in class with practice problems across all skills in this group including “Represent zero”, “Count objects to 20”, “Count objects to 50”.
- Start working on adaptive units like “Number Sense - Basics” or “Ten Groups - Counting” that include these skills and will introduce and scaffold the skills carefully for maximum learning.
Whole Numbers: Individual Skills
Master 27 individual skills with free practice problems. Mouseover to see the skill's practice problems. Create a free account to track your progress.
Your results
- Compare numerals to 100
- Compare numerals to 20
- Compare quantities directly
- Compose a two-digit number
- Count backward from 100
- Count backward from 20
- Count by 10s
- Count by 2s
- Count by 5s
- Count objects to 20
- Count objects to 50
- Decompose a two-digit number
- Explain that ten ones make one ten
- Find missing numbers on a number line
- Identify groups of ten and ones
- Identify numbers between two values
- Identify the number after
- Identify the number before
- Locate numbers on a number line
- Order numbers to 100
- Order numbers to 20
- Recognize numerals to 100
- Recognize numerals to 20
- Recognize odd and even quantities informally
- Represent zero
- Write numerals to 100
- Write numerals to 20
Practice 'Compare numerals to 100'
Select any skill in this group by hovering over the list above. Unlimited free practice problems, automatically graded.
Hover a skill above to start practicing.
Download/Modify Free Grade 1 'Whole Numbers' Worksheet
Print this free 'Whole Numbers' worksheet to practice these skills away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Compare numerals to 100
- Compare numerals to 20
- Compare quantities directly
- Compose a two-digit number
- Count backward from 100
- Count backward from 20
- Count by 10s
- Count by 2s
Units Teaching These Skills
These adaptive units introduce, teach, or reinforce skills in this group (Whole Numbers) through scaffolded problems that grow in difficulty as concepts are understood.