Powers and Exponents
Write 104 as a multiplication expression
10 x 10 x 10 x 10
What does 43 round to?
40
15 x 24
15 x 24=360
327 x 6
1,962
What are two ways to answer/show 104
10,000 and 10 x 10 x 10 x 10
What is the exponential form?
10 x 10 x 10
103
What does 340 round to?
300
33 x 78
33 x 78= 2,574
543 x 8
4,344
The rock museum has 324 display drawers. If each drawer holds 23 rock samples. *About how many* rock samples does the museum have?
300 x 20=6,000
What is the exponential form of the power of 10?
1,000
103
Estimate the product of 879 x 36?
900 x 40= 36,000
72 x 225=
16, 200
3,462 x 5
13,848
Use an area model to answer:
32 x 17=
32 x 17=544
What is 36 x 104
360,000
Estimate the product.
492 x 32
500 x 30= 15,000
120 x 53=
6, 360
2,623 x 2 =y
What is y?
y= 5,246
If Beth reads 242 pages each week, how many total pages does she read after 6 weeks?
242 x 6=1,452
What is the product?
581 x 102
58,100
Estimate the product.
246 x 38
200 x 40=8,000
452 x 273=
123, 396
If Mario walks 9,150 steps a day, how many steps did he take in a week?
9150 x 7=64,050
541 x 62=
33, 542