Cutout Area Practice Worksheet
Grade 3 Math • Lesson 13
Independent Practice
Strategy: Find the whole rectangle area, then subtract the missing cutout piece.
Name:
Date:
3-Step Strategy: Step 1: Whole Area (L × W) • Step 2: Cutout Area (L × W) • Step 3: Whole − Cutout = Area
1
Find the area of the shape:
Units: Square Meters (sq m)
CUTOUT 4 m 8 m 6 m 3 m 2 m 5 m
Step 1: Whole Area:
× = sq m
Step 2: Cutout Area:
× = sq m
Step 3: Subtract:
− = sq m
Total Area of Shape:
2
Find the area:
Units: Square Feet (sq ft)
CUTOUT 9 ft 3 ft 7 ft 2 ft 4 ft 5 ft
Step 1: Whole Area:
× = sq ft
Step 2: Cutout Area:
× = sq ft
Step 3: Subtract:
− = sq ft
Total Area of Shape:
3
Find the area of the shape:
Units: Square Inches (sq in)
CUTOUT 3 in 7 in 2 in 2 in 5 in 5 in
Step 1: Whole Area:
× = sq in
Step 2: Cutout Area:
× = sq in
Step 3: Subtract:
− = sq in
Total Area of Shape:
Turn over for Problems 4 & 5 Page 1 of 2
Level 1 • Continued Practice
Cutout Area Practice Worksheet
Student Name:
4
Find the area:
Units: Square Centimeters (sq cm)
CUTOUT 10 cm 4 cm 6 cm 3 cm 2 cm 7 cm
Step 1: Whole Area:
× = sq cm
Step 2: Cutout Area:
× = sq cm
Step 3: Subtract:
− = sq cm
Total Area of Shape:
5
Subtraction strategy:
Units: Square Meters (sq m)
CUTOUT 5 m 9 m 4 m 3 m 5 m 8 m
Step 1: Whole Area:
× = sq m
Step 2: Cutout Area:
× = sq m
Step 3: Subtract:
− = sq m
Total Area of Shape:
Math Reflection: Explain Your Strategy
Why does finding the whole rectangle's area and subtracting the cutout work for these shapes? Explain in your own words:
Completed independently • Check all square units Page 2 of 2
Area Subtraction Exit Ticket
EXIT TICKET Lesson 13 • 3.MD.C.7.d
Area Subtraction Strategy Check
Independent Mastery Check • Work silently (No partner talk)
Name:
Date:
Directions: Find the area of the composite figure using the subtraction strategy. Show your work for every step and write your answer with square units.
CUTOUT 10 ft 5 ft 8 ft 4 ft 3 ft 6 ft
Step 1: Whole Rectangle Area
× = sq ft
Step 2: Missing Cutout Area
× = sq ft
Step 3: Subtract to Find Area
− = sq ft
Total Area:
Strategy Check: Why did you subtract in Step 3?
To remove the missing corner To find the perimeter
Score: _____ / 4
[ ] Whole Area [ ] Cutout Area [ ] Subtraction [ ] Units
Cut Here (Half Page)
EXIT TICKET Lesson 13 • 3.MD.C.7.d
Area Subtraction Strategy Check
Independent Mastery Check • Work silently (No partner talk)
Name:
Date:
Directions: Find the area of the composite figure using the subtraction strategy. Show your work for every step and write your answer with square units.
CUTOUT 10 ft 5 ft 8 ft 4 ft 3 ft 6 ft
Step 1: Whole Rectangle Area
× = sq ft
Step 2: Missing Cutout Area
× = sq ft
Step 3: Subtract to Find Area
− = sq ft
Total Area:
Strategy Check: Why did you subtract in Step 3?
To remove the missing corner To find the perimeter
Score: _____ / 4
[ ] Whole Area [ ] Cutout Area [ ] Subtraction [ ] Units
