Adding Integers

Question 5 of 13 • Common Core Math 7 - MA3107 CR

Liz is using the distributive property to evaluate the expression by using friendlier numbers. Her work is shown below.Liz’s Work 27(36)Step 1 Step 2Step 3 Step 4405What was the first error that Liz made?

Answer

Step 1 should have been 27(6 + 30).

Step 2 should have been 27(3) + 12.

Step 3 should have been 27(30)(12).

Step 4 should have been 16,244.

Percent Increase and Decrease

Percent Increase and Decrease

Percent Increase and Decrease