Move from familiar differences to two-digit subtraction and a clear crossing-ten step.
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Subtraction within 100 Worksheet
Solve the subtraction problems. Write each answer in the space provided.
Name: Date:
Hint: Work with tens and ones; check any crossing-ten step.
Question 1:1.16 − 10 =
Question 2:2.17 − 10 =
Question 3:3.19 − 5 =
Question 4:4.17 − 16 =
Question 5:5.13 − 1 =
Question 6:6.15 − 13 =
Question 7:7.59 − 13 =
Question 8:8.37 − 1 =
Question 9:9.89 − 42 =
Question 10:10.96 − 3 =
Question 11:11.29 − 8 =
Question 12:12.85 − 22 =
Question 13:13.70 − 26 =
Question 14:14.90 − 4 =
Question 15:15.71 − 39 =
Question 16:16.92 − 54 =
Question 17:17.60 − 43 =
Question 18:18.83 − 44 =
Question 19:19.77 − 19 =
Question 20:20.71 − 5 =
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Answer key
Compare each answer with the same question on the worksheet.
1.16 − 10 =6
2.17 − 10 =7
3.19 − 5 =14
4.17 − 16 =1
5.13 − 1 =12
6.15 − 13 =2
7.59 − 13 =46
8.37 − 1 =36
9.89 − 42 =47
10.96 − 3 =93
11.29 − 8 =21
12.85 − 22 =63
13.70 − 26 =44
14.90 − 4 =86
15.71 − 39 =32
16.92 − 54 =38
17.60 − 43 =17
18.83 − 44 =39
19.77 − 19 =58
20.71 − 5 =66
A sequence with a purpose
Begin with smaller differences, then subtract two-digit numbers where the ones do not cross ten. The next group needs a crossing-ten strategy; the final pair mixes the ideas. Every result is non-negative. The optional answer key preserves the student sheet’s numbering.
Break the subtraction apart
For 74 − 32, subtract 30 first to get 44, then subtract 2 to get 42. For 62 − 27, reach the nearest ten first: 62 − 2 = 60, then subtract the remaining 25 to reach 35. Check by adding 27 back to 35.
