1. Splash Screen

2. Five-Minute Check (over Lesson 3–3) Main Idea
Example 1: Two-Digit and Three-Digit Numbers
Example 2: Two-Digit and Three-Digit Numbers
Lesson Menu

3. I will multiply up to a three-digit number by a one-digit number.
Main Idea/Vocabulary

4. Two-Digit and Three-Digit Numbers
Find 48 × 6.
Estimate 48 × × 6 = 300
Step 1
Multiply the ones.
Step 2
Multiply the tens. 4 6 48 × 8 4 48 × 6 8
6 × 8 = 48 ones 28
6 × 4 = 24 tens
= 28 tens
Answer: So, 48 × 6 = 288.
Example 1

5. Find 73 × 5.
350
362
365
735 A B C D
Example 1

6. Two-Digit and Three-Digit Numbers
A theater can seat 450 people for each show. If the theater fills for 8 shows, how many people attend in all?
Estimate 450 × × 10 = 4,500
Step 1 Multiply the ones. Regroup if necessary.
450 × 8
8 × 0 = 0 ones
Example 2

7. Two-Digit and Three-Digit Numbers
Step 2 Multiply the tens Add any new tens. Regroup if necessary. 4
450 8 ×
8 × 5 = 40 tens
Step 3 Multiply the hundreds Add any new hundreds. Regroup if necessary. 4
450 8 × 00
8 × 4 = hundreds 36
= hundreds
Answer: So, 3,600 people can attend 8 shows.
Example 2

8. An auditorium seats 625 people for each show
An auditorium seats 625 people for each show. If the auditorium fills for 7 shows, how many people attend in all?
4,125 people
4,375 people
4,750 people
5,150 people A B C D
Example 2

9. End of the Lesson
End Lesson

10. Five-Minute Check (over Lesson 3–3) Image Bank Math Tool Chest
Multiply Mentally
Resources

11. Estimate 52 × 78 by rounding or by compatible numbers. Show your work.
(over Lesson 3–3)
Estimate 52 × 78 by rounding or by compatible numbers. Show your work.
3,500; 50 × 70 = 3,500
4,000; 50 × 80 = 4,000
3,200; 50 × 80 = 3,200
4,500; 55 × 70 = 4,500 A B C D
Five Minute Check 1

12. Estimate 288 × 6 by rounding or by compatible numbers. Show your work.
(over Lesson 3–3)
Estimate 288 × 6 by rounding or by compatible numbers. Show your work.
1,800; 300 × 6 = 1,800
1,500; 250 × 6 = 1,500
2,400; 300 × 6 = 2,400
2,600; 300 × 6 = 2,600 A B C D
Five Minute Check 2

13. (over Lesson 3–3)
Estimate 522 × 29 by rounding or by compatible numbers. Show your work.
15,000; 500 × 30 = 15,000
16,500; 550 × 30 = 16,500
10,000; 500 × 20 = 10,000
20,000; 500 × 30 = 20,000 A B C D
Five Minute Check 3

14. (over Lesson 3–3)
Estimate 17 × 592 by rounding or by compatible numbers. Show your work.
18,000; 20 × 600 = 18,000
16,000; 20 × 600 = 16,000
12,000; 20 × 600 = 12,000
9,000; 15 × 600 = 9,000 A B C D
Five Minute Check 4

15. (over Lesson 3–3)
Estimate 253 × 23 by rounding or by compatible numbers. Show your work.
6,250; 250 × 25 = 6,250
500; 250 × 2 = 500
6,000; 300 × 20 = 6,000
5,000; 250 × 20 = 5,000 A B C D
Five Minute Check 5

16. End of Custom Shows