This grade 1 comparing worksheet answer key solves all 23 problems of the comparing two-digit numbers worksheet step by step.
This answer key shows every step for the 23 comparing numbers problems. In each answer, the tens are checked first and then the ones. Use it to talk about mistakes, like looking at the ones before the tens.
Grade 1 Comparing Worksheet Answer Key: problems 1–5
Problem 1: Which has more tens
Group A has 2 rods. Group B has 4 rods. 4 tens is more than 2 tens.
\(40 > 20\). Group B is greater (40).
Problem 2: Which is less
Compare the tens first: 7 tens and 6 tens. 7 tens is more than 6 tens.
The number that is less is 60.
Problem 3: Pick the greater
Compare the tens first: 2 tens and 5 tens. 2 tens is less than 5 tens.
\(52 > 25\). The greater number is 52.
Problem 4: Pick the smaller
Compare the tens first: 8 tens and 1 tens. 8 tens is more than 1 tens.
The smaller number is 18.
Problem 5: Write the symbol
Compare the tens first: 3 tens and 2 tens. 3 tens is more than 2 tens.
\(34 > 21\). The symbol is >.
Grade 1 Comparing Worksheet Answer Key: problems 6–10
Problem 6: Write the symbol again
Compare the tens first: 5 tens and 6 tens. 5 tens is less than 6 tens.
\(56 < 65\). The symbol is <.
Problem 7: Same tens, check the ones
The tens are the same: 6 tens. Now compare the ones: 3 and 8. 3 ones is less than 8 ones.
\(63 < 68\). The symbol is <.
Problem 8: Same tens, check the ones again
The tens are the same: 4 tens. Now compare the ones: 7 and 1. 7 ones is more than 1 ones.
\(47 > 41\). The symbol is >.
Problem 9: Tens and ones to a number
3 tens and 9 ones is \(30 + 9 = 39\).
\(39 = 39\). The symbol is =.
Problem 10: Compare the blocks
Group A: 3 tens and 8 ones is 38. Group B: 3 tens and 5 ones is 35.
The tens are the same: 3 tens. Now compare the ones: 8 and 5. 8 ones is more than 5 ones.
\(38 > 35\). The symbol is >.
Grade 1 Comparing Worksheet Answer Key: problems 11–15
Problem 11: More ones is not always more
Group A: 2 tens and 9 ones is 29. Group B: 3 tens and 1 one is 31.
Compare the tens first: 2 tens and 3 tens. 2 tens is less than 3 tens. Group A has more ones, but ones do not matter here.
\(29 < 31\). The symbol is <.
Problem 12: Use the number line
Point A is at 43. Point B is at 48. B is farther to the right.
\(43 < 48\). The symbol is <.
Problem 13: Use the place value chart
The first chart is 6 tens and 2 ones, which is 62. The second is 6 tens and 7 ones, which is 67.
The tens are the same: 6 tens. Now compare the ones: 2 and 7. 2 ones is less than 7 ones.
\(62 < 67\). The symbol is <.
Problem 14: Three symbols
a) Compare the tens first: 1 tens and 9 tens. 1 tens is less than 9 tens. \(19 < 91\).
b) Same tens and same ones. \(50 = 50\).
c) Compare the tens first: 7 tens and 2 tens. 7 tens is more than 2 tens. \(72 > 27\).
The symbols are <, = and >.
Problem 15: Greatest of three
The tens are 2, 9 and 5. 9 tens is the most.
The greatest number is 92.
Grade 1 Comparing Worksheet Answer Key: problems 16–20
Problem 16: Least of three
The tens are 7, 1 and 4. 1 ten is the least.
The least number is 17.
Problem 17: Least to greatest
Tens: 6, 3 and 6. So 36 is the least. 63 and 66 both have 6 tens. Compare their ones: 3 is less than 6.
The order is 36, 63, 66.
Problem 18: Sticker collectors
Compare the tens first: 4 tens and 5 tens. 4 tens is less than 5 tens.
\(45 < 54\). Ben has more stickers.
Problem 19: Pages read
The tens are the same: 2 tens. Now compare the ones: 8 and 3. 8 ones is more than 3 ones.
\(23 < 28\). Sofia read fewer pages.
Problem 20: Farmers market
Compare the tens first: 6 tens and 7 tens. 6 tens is less than 7 tens.
\(67 < 76\). The stand has more pears.
Grade 1 Comparing Worksheet Answer Key: problems 21–23
Problem 21: Seashell collections
5 tens and 2 ones is \(50 + 2 = 52\).
\(52 = 52\). Neither has more. They have the same number of shells.
Problem 22: Is Liam right
Compare the tens first: 2 tens and 3 tens. 2 tens is less than 3 tens. Liam looked at the ones first, but the tens come first.
Liam is not right. The correct comparison is \(29 < 31\).
Problem 23: Card game
Diego’s greater card: Compare the tens first: 3 tens and 6 tens. 3 tens is less than 6 tens. He plays 63.
Now compare 63 and 59. Compare the tens first: 6 tens and 5 tens. 6 tens is more than 5 tens.
\(63 > 59\). Diego has the greater card.
How to use this grade 1 comparing worksheet answer key
Read this grade 1 comparing worksheet answer key after trying each problem yourself, and redo any problem you missed.
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Grade 1 Comparing Two-Digit Numbers worksheet answer key
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