Worked Example 1
Use the Ones Digit
Is 538 even or odd?
- 1The ones digit is 8.
- 28 is even, so 538 is even.
Answer: Even
Florida Grade 3 Math · Algebraic Reasoning
MA.3.AR.3.1: Even and Odd Numbers to 1,000
What this Grade 3 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.3.AR.3.1?
Students decide whether a whole number from 1 to 1,000 is even or odd and explain why, using place value and patterns.
Every ten and every hundred is even, so only the ones digit decides. If the ones digit is 0, 2, 4, 6, or 8, the number is even. If it is 1, 3, 5, 7, or 9, the number is odd.
Official benchmarkDetermine and explain whether a whole number from 1 to 1,000 is even or odd.
On the FAST test: part of the Grade 3 reporting category Number Sense and Additive Reasoning, which is about 23–29% of the test.
Worked Examples
Worked Example 2
Explain With Place Value
Explain why 375 is odd.
- 1375 = 370 + 5
- 2370 is made of tens, and tens can always be split into two equal groups, so 370 is even.
- 35 is odd, so adding 5 leaves one left over.
Answer: 375 is odd
Common Mistakes to Watch For
Looking at the wrong digit
Wrong:854 is odd because 5 is odd.
Only the ones digit decides. The ones digit is 4, so 854 is even.
Thinking numbers ending in 0 are odd
Wrong:730 is odd because 0 is not an even digit.
0 is even. 730 can be split into two equal groups: 365 + 365 = 730.
Helpful Math Tip
Skip count by 2s and notice the ones digits repeat: 0, 2, 4, 6, 8. Then try large numbers like 998 or 1,000.
Related Grade 3 Skills
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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.