Word Problems
Mrs. LeDoux drives 38 miles each day for 21 days. The last day she drives an additional 13 miles. Mrs. LeDoux finds the number of miles she drives for the 21 days. If Mrs. LeDoux uses rounding to check whether his answer is reasonable, which equation does he use?
20 x 20 + 10= 410
30 x 20 + 10= 610
40 x 20 + 10= 810
30 x 30 + 20= 920
40 x 20 + 10= 810
The area model shows part of the products of two numbers. What numbers will correctly complete the model? Write the correct answers in the boxes to complete the model.
On the board!
Multiply Using Area Model
16 x 32
512
Use the Distributive Property to multiply. Complete the equation to find the product. Write your answers in the boxes.
(17x 40)= (___ x ___ ) +(___ x ___ )= 400 + ___= ___
(17x 40)= (10x 40) +(7x 40)= 400 + 280=680
Carlos sells 32 t-shirts for $15 each and 19 sweatshirts for $22 each at the school store. How much money does Carlos collect for t-shirts and sweatshirts?
(TWO STEPS)
32 x 15= $480
19 x 22= $418
$480+ $418= $898
The area model shows part of the products of two numbers. What numbers will correctly complete the model? Write the correct answers in the boxes to complete the model.
Answer in the board!
What equation would match the area model (on the board)?
Answer on the board!
Use the Distributive Property to multiply. Complete the equation to find the product. Write your answers in the boxes.
(13x 20)= (___ x ___ ) +(___ x ___ )= 200+ ___= ___
(13x 20)= (10 x 20) +(3 x 20)= 200+ 60= 260