A quantity organized into equal groups of ten can be counted by tens: one group is 10, two groups are 20, and so on, typically for totals through 100. The learner connects each group to one ten in a ten-frame or place-value representation, distinguishes the number of groups from the total number of objects, and builds a foundation for place value and multiplication; formal multiplication rules and larger-number generalizations are not included.
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- Learn “Count groups of 10” with a detailed explanation of the concept
- Master “Count groups of 10” with unlimited, free practice problems
- Download (or modify) a free worksheet on Count groups of 10 you can use at home or in class with practice problems that scaffold and explore “Count groups of 10” from different perspectives.
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Detailed Explanation: Count groups of 10
When objects are arranged in equal groups of ten, count each group as 10.
Example: There are 4 full groups of ten blocks. How many blocks are there?
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Look at one group. It has 10 blocks.
Count: 10 -
Count the second group by adding another 10.
Count: 20 -
Count the third group by adding another 10.
Count: 30 -
Count the fourth group by adding another 10.
Count: 40
So, there are 4 groups, and there are 40 blocks in all.
You can show this as:
Remember: the number of groups is 4, but the total number of objects is 40.
Learn by doing: Count groups of 10
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Practice:
Division Foundations - Pictures to Groups of 10 (Groups and Remainder)
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Download/Modify Free Grade 1 'Count groups of 10' Worksheet
Print this free 'Count groups of 10' worksheet to practice this skill away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Division Foundations - Pictures to Groups of 10 (Groups and Remainder)
- Base 10 Blocks - Counting - Picture to Word, Tens and Ones
- Words to Number Equivalents - Power of Ten
- Base 10 Blocks - Counting - Number to Picture, Tens and Ones
Units Teaching This Skill
These adaptive units introduce, teach, or reinforce this skill (Count groups of 10) through scaffolded problems that grow in difficulty as concepts are understood.