Question

Kym used the integer tiles to find the sum of (–3) + 6. The line showed that the answer is negative 3. Which of the following does Kym need to do to get the correct answer?

add three more negative tiles
remove the zero pairs
add three more positive tiles
remove three positive tiles

Answer 1

Kai built the bookshelf shown below. The bookshelf is 48 inches tall with a solid board on the back, and EACH shelf measures 18 inches wide by 24 inches long. If Kai wants to paint all the surfaces, including the undersides of both shelfs and the base, as well as both sides of the bookshelf’s back and sides, how many square FEET will he paint?

Explanation:

Answer 2

remove the zero pairs

so B

Explanation: