Question

Find the sum of 0.23 and 0.43 using decimal grid models.

• A. 0.66
• B. 0.56
• C. 0.36
• D. 0.76

Answer 1

The correct option is A 0.66


Here, $0.23=\frac{23}{100}$ and $0.43=\frac{43}{100}$

First shade the region 0.23 and then shade 0.43.

The total shaded area is the sum
So, 0.23+0.43 = 0.66.