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Place Value Power
Multiply by 10s
Multiply by 100s
Real-World Math
100

Question: What is the product of 4 × 30?

Answer: 120

100

Question:
3 × 20 = ?

60

100

Question:
2 × 100 = ?

200

100

Question:
Mr. Anderson has 4 boxes with 20 pencils in each box. How many pencils are there?

Answer: 80 pencils

20 is 2 tens

4 x 2 tens = 8 tens

8 tens = 80

200

Question: What is the product of 6 × 40?

Answer: 240 

200

Question:
5 × 50 = ?

Answer: 250 

200

Question:
4 × 200 = ?

Answer: 800

200

The Golden State Warriors are giving away 6 boxes of basketball cards to young fans. Each box has 40 cards.

How many basketball cards are there altogether?

Show work & explain your thinking! 

Answer: 240 basketball cards 

40 = 4 tens

6 x 4 tens = 24 tens

24 tens = 240

300

Question:
What is the product of 7 × 60?

Answer: 420

300

Question:
8 × 40 = ?

Answer: 320

300

7 x 400= ? 

Explain how can you use 7 x 4 to solve the problem

Answer: 2,800

300

Question: 

McDonald's has 9 boxes with 40 Happy Meal toys in each box.

How many are there altogether? *Use place value to help


Answer: 300 

400

Without calculating first, predict whether the answer to 6 x 40 will be greater than or less than 200. Solve and explain how place value helped you. 

Answer: 240; greater than 200

400

Which equation has the greater product?

8 x 30 or  6 x 50

Answer: 6 x 5 =300 is greater 

400

A student says:

8 x 300 = 2,400 because  8 x 3= 24 and 300 has two zeros.

Do you agree? Explain 

Answer: Yes. 300 is 3 hundreds. 8 x 3 hundreds = 24 hundreds = 2,400
400

Chick-fil-A is preparing for a school event. They have 8 boxes of chicken sandwiches. Each box contains 50 sandwiches. 

How many sandwiches are there altogether? Explain using place value

Answer: 400 sandwiches 

500

A student says: 6 x 40 = 24 because 6 x 4 = 24. 

Is the student correct? Do you agree or disagree. Explain your thinking using place value.  

Answer: No 40 represents 4 tens. 6 x 4= 24 tens= 240

500

Question:
9 × 70 = ?

Answer: 630

500

Question:
8 × 900 = ?

Answer: 7,200

500

Domino's is preparing for a huge Friday night. They have 8 boxes of pizza, and each box contains  300 slices. 

How many pizza slices are there altogether? Solve by using place value. 

Answer: 2,400 

300 = 3 hundreds

8 x 3 hundreds = 24 hundreds

24 hundreds= 2,400