Calm Calculations Worksheet
Calm Calculations
Double-Digit Addition • No Regrouping
Page 1 of 2
Name:
Date:
Solve the addition problems below. Write your answers directly under the line.
Problem 1
2
4
1
3
Problem 2
5
1
2
5
Problem 3
4
2
3
6
Problem 4
1
7
6
2
Problem 5
3
0
4
8
Take Your Time
Check each column. Add ones first, then add tens.
Calm Calculations • SpEd Math Series Keep practicing! Move on to page 2 when ready.
Calm Calculations
Double-Digit Subtraction • No Regrouping
Page 2 of 2
Name:
Date:
Solve the subtraction problems below. Write your answers directly under the line.
Problem 6
4
8
-
1
5
Problem 7
6
7
-
2
4
Problem 8
8
9
-
5
3
Problem 9
5
5
-
3
1
Problem 10
9
6
-
4
2
All Done!
Excellent work! Celebrate completing your math sheet today.
Calm Calculations • SpEd Math Series Put your pencil down and let your teacher know.
Calm Calculations Assessment
Calm Calculations Assessment
Addition Section • No Regrouping
Page 1 of 3
Name:
Date:
Independent Practice: Solve the addition problems. Show your calculations in the spacious area under the line.
Problem 1
3
2
1
5
Problem 2
5
4
2
3
Problem 3
2
1
6
7
Problem 4
4
3
3
4
Problem 5
6
0
1
9
Addition Score
/ 5
Teacher Use Only
Calm Calculations Assessment • CCSS.2.NBT.5 Diagnostic Page 1 of 3 (Student Work)
Calm Calculations Assessment
Subtraction Section • No Regrouping
Page 2 of 3
Name:
Date:
Independent Practice: Solve the subtraction problems. Show your calculations in the spacious area under the line.
Problem 6
5
8
-
2
4
Problem 7
7
6
-
3
2
Problem 8
8
5
-
5
1
Problem 9
9
9
-
4
6
Problem 10
3
7
-
1
5
Subtraction Score
/ 5
Teacher Use Only
Calm Calculations Assessment • CCSS.2.NBT.5 Diagnostic Page 2 of 3 (Student Work)
Teacher Assessment Guide
Scoring, Keys, and IEP Progress Tracker
Page 3 of 3 (Teacher Only)
Answer Key
P1 (Add):
32 + 15 = 47
P2 (Add):
54 + 23 = 77
P3 (Add):
21 + 67 = 88
P4 (Add):
43 + 34 = 77
P5 (Add):
60 + 19 = 79
P6 (Sub):
58 - 24 = 34
P7 (Sub):
76 - 32 = 44
P8 (Sub):
85 - 51 = 34
P9 (Sub):
99 - 46 = 53
P10 (Sub):
37 - 15 = 22
IEP Goal Connection
"By August 2027, given 10 double-digit vertical addition and subtraction problems without regrouping, the student will independently align and solve the equations with 80% accuracy (8/10 correct) in 4 out of 5 consecutive trials."
Recommended Accommodations:
- Read instructions aloud to student
- Allow use of base-10 blocks
- Provide double-spaced draft grid
Observational Scoring Rubric
| Skill Category | 1 - Needs Support | 2 - Progressing | 3 - Independent Mastery |
|---|
| Spatial Column Alignment | Numbers are written randomly; columns lost. | Aligns numbers mostly correctly, minor shifts. | Keeps tens and ones columns perfectly aligned during writing. |
| Operation Awareness | Adds instead of subtracting (or vice versa). | Needs a verbal prompt to notice sign changes. | Transitions from add (P1-5) to subtract (P6-10) with zero prompts. |
| Arithmetic Accuracy | Has 4+ calculation errors due to facts/counting. | Has 1-3 minor counting mistakes, vertical process is clear. | All 10 calculations are accurate (or max 1 minor slip). |
IEP Progress Record
Raw Score:
_______ / 10 correct
Percentage Achievement:
_______ % Accuracy
Independence Level:
⬜ Indep. ⬜ Prompted ⬜ Assisted
IEP Session Notes:
Calm Calculations • Teacher Assessment Guide Confidential Student File Copy
