The hundredths grids shown below are used to model an addition problem.

Question

Twenty-nine squares of first hundredths grid are shaded and four squares of second hundredths grid are shaded.

Which addition problem is modeled with the hundredths grids?

A.
0.29+0.04=0.33
B.
0.29+0.4=0.69
C.
2.9+0.4=3.3
D.
2.9+0.04=2.94

Answer 1

To determine which addition problem is modeled by the shaded squares on the hundredths grids, we need to analyze how many squares are shaded in each grid.

• The first hundredths grid has 29 squares shaded, which represents 0.29.
• The second hundredths grid has 4 squares shaded, which represents 0.04.

Now, we can add these two values:

0.29 + 0.04 = 0.33.

Thus, the addition problem modeled with the hundredths grids is:

A. 0.29 + 0.04 = 0.33.