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First, look closely: After zooming in on the fourth grid, I can see a 10x10 grid. The top 2 full rows are completely shaded gray. In the 3rd row, the first 7 squares from the left are shaded. All other squares below the 3rd row are unshaded. This means there are 2 full rows (20 squares) plus 7 additional squares shaded.
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Then, review the findings: I have now counted the shaded squares for all three remaining grids.
- Second grid: 68 shaded squares.
- Third grid: 43 shaded squares.
- Fourth grid: 27 shaded squares.
Since each grid represents 100 total parts (10x10), the decimal number is found by dividing the number of shaded squares by 100.
- Second grid: 68/100 = 0.68
- Third grid: 43/100 = 0.43
- Fourth grid: 27/100 = 0.27
The solution is to fill in these decimal values in the corresponding "Decimal" column for each model.
- 0.68
- 0.43
- 0.27
Parent Tip: Review the logic above to help your child master the concept of printable tenths grid.
