Worked Example 1
Making 10
6 + 4
- 16 and 4 are a pair that makes 10.
- 26 + 4 = 10
Answer: 10
Florida Grade 1 Math · Number Sense and Operations
MA.1.NSO.2.1: Addition Facts to 10
What this Grade 1 benchmark means, worked examples, common mistakes, and a free printable worksheet.
Created by a Florida mom · Published by Tropical Learning LLC
What Is Benchmark MA.1.NSO.2.1?
By the end of Grade 1, children should know addition facts with sums up to 10, and the related subtraction facts, quickly and without counting.
Pairs that make 10 (like 6 + 4 and 7 + 3) are especially important, because children use them to add bigger numbers.
Official benchmarkRecall addition facts with sums to 10 and related subtraction facts with automaticity.
How it is tested: Grade 1 students take FAST Star Math, Florida's math test for Kindergarten through Grade 2.
Worked Examples
Worked Example 2
Using Addition to Subtract
9 − 5
- 1Think: 5 plus what makes 9?
- 25 + 4 = 9, so 9 − 5 = 4
Answer: 4
Common Mistakes to Watch For
Counting the first number again
Wrong:5 + 3 = 7 (counting 5, 6, 7)
Start counting after 5: 6, 7, 8. So 5 + 3 = 8.
Using the wrong related fact
Wrong:7 − 3 = 3
3 + 4 = 7, so 7 − 3 = 4.
Helpful Math Tip
Practice a few facts each day with fingers, dominoes, or dice, always pairing an addition fact with its subtraction facts (4 + 5 = 9, 9 − 5 = 4).
Related Grade 1 Skills
Make Florida Math Practice More Fun
Help your child build math confidence with original interactive questions aligned with Florida's B.E.S.T. Mathematics Standards.
Start Practicing FreeIndependent Educational Platform. FastChomp is published by Tropical Learning LLC and is not affiliated with, sponsored by, or endorsed by the Florida Department of Education. FAST and Star assessment names are referenced for informational purposes only. FastChomp practice questions are original educational materials, not official Florida FAST assessment questions.