Subtracting Decimals Using a (10 x 10) Grid

The video tutorial explains how to represent and subtract decimals using a 10x10 grid. Each square in the grid represents one hundredth, and each column represents one tenth. The tutorial demonstrates how to identify the decimal value of shaded areas and how to subtract decimals by removing columns and squares. The lesson concludes with a summary of the subtraction process using the grid.

What does each square in a 10 by 10 grid represent?

• One tenth

• One hundredth

• One thousandth

• One whole

How many tenths are represented by three shaded columns in the grid?

• 1/10

• 2/10

• 4/10

• 3/10

If you have 34 shaded squares, what decimal does this represent?

• 0.34

• 0.43

• 3.4

• 4.3

What is the result of subtracting 15 hundredths from 34 hundredths on the grid?

• 0.34

• 0.15

• 0.19

• 0.29

How many squares need to be removed to subtract 15 hundredths from 34 hundredths?

• 20 squares

• 10 squares

• 15 squares

• 5 squares