Mod 2 Area Model

Use Area Model and partial products to solve.

35 x 42

Ms. Dewey feeds 12 kilograms of hay to each of her 2 horses daily. How many kilograms of hay will all her horses have eaten after 21 days?

Restate with a blank

Draw an area model to solve.

Draw an area model then solve using standard algorithm.

123

x23

Mathematical Equivalence

ON

Draw an area model then solve using standard algorithm.

434

x21

Mathematical Equivalence

ON

Which expression is NOT equal to 38 x 45?

• 38(40 +5)

• (38 x 40) + (38 x 5)

• 45 x (40+2)

• 45 thirty eights

Jamella delivers 174 newspapers every day. Tayvon delivers 126 more newspapers each day than Jamella.

a. Write an expression to show how many newspapers Tayvon will deliver in 29 days.

b. Use mental math to solve. Show your thinking.

Eli says 45 x 32 is the same as (45 x 3) + (45 x 2). Explain Eli's error using words, numbers and/or pictures.

Solve mentally.

101 x 15

• 1500

• 1515

• 1485

• 1530