Mental Patterns
Strategies
3-Digit and 4-Digit
Word Problems
Distributive Property
100

Solve using mental math. 50 x 5

What is 250?

100

Lattice Method

9,877 x 18

What is 177,786?

100

Solve the equation. 665 x 39

What is 25,935?

100
A jet plane can travel 567 miles per hour. How many miles could it travel in 4 hours?
What is 2,268 mph?
100
Solve the equation. 23 x 15
What is 345?
200
Solve using mental math. 80 x 30
What is 240?
200

Area Model

683 x 88

What is 60,104?

200

Solve the equation. 945 x 22

What is 20,790?

200
An adult panda can eat 138 pounds of bamboo each day. How many pounds of bamboo can a panda eat in a week?
What is 966 pounds?
200

Solve the equation. 5,563 x 7

What is 38,941?

300
Solve using mental math. 600 x 70
What is 42,000?
300

Standard Algorithm

9,348 x 22

What is 205,656?

300

Solve the equation. 3,126 x 48

What is 150,048?

300
Harry buys 9 dozen eggs. How many eggs does he have in all?
What is 108 eggs?
300

Solve the equation. 694 x 52

What is 36,088?

400
Solve using mental math. 90 x 40
What is 3,600?
400

Area Model

948 x 38

What is 36,024?

400

Solve the equation. 6,132 x 52

What is 318,864?

400

Tina's cat eats 3 times per day. How many meals will the cat eat in 4 weeks?

What is meals?

400
Solve the equation. 74 x 36
What is 2,664?
500
Solve using mental math. 500 x 800
What is 400,000?
500

Lattice Method

6,976 x 89

What is 620,864?

500

Solve the equation. 5,290 x 87

What is 460,230?

500

Kate has 37 gold coins. Brent has 19 times as many gold coins as Kate. How many coins do they have altogether? 

What is 740 gold coins?

500

Solve the equation. 196 x 37

What is 7,252?