Comparing and Ordering Decimals — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Compare using >, <, or =: 0.625 > 0.612.
Grade 5 students see 5 thousandths is greater than 2 thousandths, so 0.625 > 0.612.
2. Compare using >, <, or =: 0.408 < 0.480.
Grade 5 comparison: tenths tie at 4, but 0 hundredths is less than 8 hundredths, so 0.408 < 0.480.
3. Annex a zero to align: 0.5 = 0. 5 00.
Grade 5 students write 0.500 to compare with thousandths; the 5 stays in the tenths place.
4. Compare using >, <, or =: 0.700 = 0.7.
Grade 5 learners know 0.700 = 0.7 because the annexed zeros each add nothing.
5. Compare using >, <, or =: 0.319 < 0.32.
Grade 5 students annex a zero to get 0.320, then see 0.319 < 0.320.
6. Compare using >, <, or =: 0.901 < 0.91.
Grade 5: 0.91 = 0.910, and 0.901 < 0.910 because 0 hundredths is less than 1 hundredth after annexing.
7. Compare using >, <, or =: 0.250 > 0.205.
Grade 5 students see tenths tie at 2, then 5 hundredths > 0 hundredths, so 0.250 > 0.205.
8. Compare using >, <, or =: 0.6 > 0.589.
Grade 5 learners rewrite 0.6 as 0.600 and see 0.600 > 0.589.
9. Compare using >, <, or =: 0.444 = 0.444.
Identical decimals are equal — 0.444 equals 0.444 by place value.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Compare 0.375 and 0.3
→ 0.375 > 0.3
0.375 > 0.3
Compare 0.5 and 0.500
→ 0.5 = 0.500
0.5 = 0.500
Compare 0.812 and 0.821
→ 0.812 < 0.821
0.812 < 0.821
Compare 0.06 and 0.060
→ 0.06 = 0.060
0.06 = 0.060
Grade 5 students align decimals to thousandths, then compare digits left to right to choose >, <, or =.