Let's solve this step by step.
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🔍 Understanding the Problem
Each block is a
10x10 grid, meaning it has
100 small squares in total.
This represents
one whole unit (1), and each small square is
1/100 or
0.01 of the whole.
We are to determine what
decimal value the shaded portion represents in each block.
The example shows:
- 3 columns shaded → 30 out of 100 squares
- So, $ \frac{30}{100} = 0.3 $
So, we count how many
squares are shaded, divide by 100, and write the decimal.
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✔ Let’s go through each one:
####
1.
- Shaded: 1 column = 10 squares
- $ \frac{10}{100} = 0.1 $
-
✔ Answer: 0.1
####
2.
- Shaded: 4 columns = 40 squares
- $ \frac{40}{100} = 0.4 $
-
✔ Answer: 0.4
####
3.
- Shaded: 9 columns = 90 squares
- $ \frac{90}{100} = 0.9 $
-
✔ Answer: 0.9
####
4.
- Shaded: 2 columns = 20 squares
- $ \frac{20}{100} = 0.2 $
-
✔ Answer: 0.2
####
5.
- Shaded: 4 columns = 40 squares
- $ \frac{40}{100} = 0.4 $
-
✔ Answer: 0.4
####
6.
- Shaded: Only 1 square in the bottom-left corner
- $ \frac{1}{100} = 0.01 $
-
✔ Answer: 0.01
####
7.
- Shaded: 5 columns = 50 squares
- $ \frac{50}{100} = 0.5 $
-
✔ Answer: 0.5
####
8.
- Shaded: Only 1 square in the bottom-left corner
- $ \frac{1}{100} = 0.01 $
-
✔ Answer: 0.01
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✔ Final Answers:
1.
0.1
2.
0.4
3.
0.9
4.
0.2
5.
0.4
6.
0.01
7.
0.5
8.
0.01
---
📌 Summary
- Each
column = 10 squares = 0.1
- Each
single square = 0.01
- Count shaded squares or columns and convert to decimal.
Let me know if you'd like this formatted for printing!
Parent Tip: Review the logic above to help your child master the concept of decimal models worksheet.