Based on my analysis of the image, I can solve the column addition problems by counting the cubes represented in each picture. The long vertical bars represent groups of 10 cubes each, and the individual dots represent single cubes.
Here are the solutions for each problem:
Problem 1:
- Top picture: 1 long bar (10 cubes) + 5 individual cubes = 15
- Bottom picture: 2 long bars (20 cubes) + 3 individual cubes = 23
- Calculation: 15 + 23 = 38
Problem 2:
- Top picture: 1 long bar (10 cubes) + 2 individual cubes = 12
- Bottom picture: 2 long bars (20 cubes) + 4 individual cubes = 24
- Calculation: 12 + 24 = 36
Problem 3:
- Top picture: 2 long bars (20 cubes) + 3 individual cubes = 23
- Bottom picture: 1 long bar (10 cubes) + 7 individual cubes = 17
- Calculation: 23 + 17 = 40
Problem 4:
- Top picture: 2 long bars (20 cubes) + 4 individual cubes = 24
- Bottom picture: 3 long bars (30 cubes) + 2 individual cubes = 32
- Calculation: 24 + 32 = 56
The final answers to fill in the boxes are:
1. 38
2. 36
3. 40
4. 56
Parent Tip: Review the logic above to help your child master the concept of subtraction worksheet with cubes.