Exponents
What number is equivalent to 105?
10,000
Ben earns $2.75 for each crate of berries he picks. About how much would Ben earn if he picks 4 crates of berries?
About $12
Knowing that 4.8 × 102 = 480, what is 4.8 × 104?
A. 480
B. 4,800
C. 48,000
D. 480,000
C
Which equation is represented by the decimal grid? (see slide 1)
A. 0.03 × 0.09 = 0.27
B. 3 × 0.9 = 2.7
C. 0.3 × 0.9 = 2.7
D. 0.3 × 0.9 = 0.27
D
A dog’s rectangular play area is 3.9 meters wide and 16 meters long. What is the area of the play area? Use the area model to solve.
62.4 square meters
Which of these are equivalent to 3.8 × 103? Choose all that apply.
A. 3.8 × 10 × 3
B. 3.8 × 10 × 10 × 10
C. 380
D. 3,800
B and D
Theodore buys mangoes for $4.08 per pound. About how much money does Theodore need if he buys 3.7 pounds of mangoes?
About $16.00
Jaquan knows that 47 × 0.36 = 16.92. What is 4.7 × 3.6?
A. 1.692
B. 16.92
C. 169.2
D. 1,692
B
A sandwich shop uses 0.12 pound of bacon on each sandwich. How much tomato will the shop need to make 7 sandwiches? Use the decimal grid to help you solve.
0.84
Deirdre fills 43 bubble containers with bubble mix. Each bubble container holds 2.7 ounces. How many ounces of bubble mix does Deirdre use? Use an area model to solve
116.1 ounces
Which of these are equivalent to 5.64 x 104?
A. 5.64 x 10 x 10 x 10 x 10
B. 564
C. 56,400
D. 5,640
A and C
Miss Lafountain wants to buy some Batman stickers. Each sticker sheet costs $2.65. She wants to buy 7 sheets. About how much will it cost her?
About $21
What is the product? Use place-value patterns to solve the equations.
58 × 71 = 4,118
58 × 7.1 = ______
0.58 × 71 = ______
411.8 and 41.18
0.5 x 0.7. Use decimal grids to solve
0.35
Kiarah has a new friend named Annie. Annie loves kiwi. Annie wants to buy kiwi on sale for $1.40 per pound. She buys herself 6.5 pounds. How much will it cost her to buy the kiwi?
$9.10
Which of the following fractions are greater?
1/6 and 1/4
1/4
While at the grocery store, Danae sees that bananas are on sale for $1.88 per pound (yikes Danae are you rich?). She wants to buy 5.4 pounds. About how much will it cost her to buy the bananas?
About $10
What is the product? Use place-value patterns to solve the equations.
48 x 29 = 1,392
48 x 2.9 = ______
4.8 x 2.9 = ______
139.2 and 13.92
3 x 0.3. Use decimal grids to solve
0.9
What is the next number in the sequence?
3, 8, 13, 18...
23
Which of these are equivalent to 2.7 x 102?
A. 2.7 x 10
B. 27
C. 2.7 x 10 x 10
D. 270
C and D
Mrs. Alger wants to buy some pencils for her students (how nice!). Each pencil costs $2.15 (oof expensive!). About how much will it cost her to buy one pencil for her class of 14 students?
About $28
What is the product? Use place-value patterns to solve the equations.
68 x 32 = ______
68 x 3.2 = 217.6
68 x 0.32 = ______
2,176 and 21.76
0.17 x 7. Use decimal grids to solve
1.19
How many pennies are in $23.25?
A. 93
B. 465
C. 1,555
D. 2,325
D