How to use the hundredths grids to subtract 1.65-0.98
Line up the decimals. Then subtract like you would usually do.
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To use hundredths grids to subtract 1.65 from 0.98, you can follow these steps:
Step 1: Draw the hundredths grids
Draw two hundredths grids, one for each number involved in the subtraction. Each grid is divided into 100 equal squares, representing hundredths.
Step 2: Represent 1.65 on the first grid
Mark 1 whole square on the first grid to represent the whole number 1. Then, mark 6 squares in the tenths column to represent 0.60, and finally mark 5 squares in the hundredths column to represent 0.05. The total representation on the first grid would be 1.65.
Step 3: Represent 0.98 on the second grid
Mark 9 squares in the tenths column to represent 0.90, and then mark 8 squares in the hundredths column to represent 0.08. The total representation on the second grid would be 0.98.
Step 4: Subtract the grids
Starting from the first column (hundredths), subtract the number of squares in the second grid from the first grid. In this case, since there are more squares in the first grid, you will not need to borrow. Subtract 8 hundredths from 5 hundredths, which equals 3 hundredths. Then, subtract 9 tenths from 6 tenths, which equals 3 tenths. Finally, subtract 0 ones from 1 one, which equals 1.
Step 5: Read the result
The result of the subtraction is 0.67. This means that 1.65 minus 0.98 equals 0.67.
By using hundredths grids, you can visually represent the numbers and their value in the subtraction problem, making it easier to understand and calculate the result.