G8

Input/Model

(Teacher Presents)

Directions: Draw a model for the given equation. Solve.

(^) 11.3 × 7 .2 = x
Solution:

Step 1 - Draw a model:

Step 2 – Solve by multiplying each box.

Step 3 – Add the products of each box together.
77 + 2.2 + 2.1 + .06 = x

Answer: 푥푥 = 81.36

5 푏푏 = 7. 5

Solution:

Step 1 - Draw a model:

Step 2 - Solve using reason or logic: I think, what
number times 5 equals 7.5? I divide 7.5 by 5, and
get 1.5.

Answer: 푏푏 = 1.5

7.5

푏푏 푏푏 푏푏 푏푏 푏푏

11 0.3

7

0.2

7 × 11 = 77 7 × 0.3= 2.1

0.2 × 11 = 2.2 0.2 ×^ 0.^3 = 0.^06

Input/Model