Powers of 10
What is 48 x 10^2
4,800
What is the estimated product of 824 X 725
800 x 700 = 560,000
What is 1.7 x 0.22 =
0.374
What is 0.4 x 0.3 written in expanded notation
(4 x 1/10) x (3 x 1/100)
What is 342 divided by 38
9
What is 94.6 x 10^3
94,600
What is the estimated sum 34.1 + 18.8
30 + 20 = 50
What is 5 x 0.5 =
2.5
What is 504.32 written in expanded notation
(5x100) + (4x1) + (3 x 1/10) + (2 x 1/100)
What is 1 ⅛ x 3 ⅓ =
3 ¾
What is 4.6 times 100
460
Lea bought 225 flowers and 12 vases. She put the same number of flowers in each vase. Which is the best estimate for the number of flowers in each vase.
19 flowers
What is 56 x 0.4 =
22.4
What is 34.2 divided by 0.2
171
What is 2/5 x 15 =
6
What is 9.9 divided by 10^2
0.099
Lance has 102 packages of sports cards. Each package has 28 cards. Use rounding to estimate. About how many cards does lance have?
100 x 30 = 3,000 cards
Jefferson drew a line 9.5 inches long. Brittany drew a line 10 times as long. What is the difference in length between the two lines?
85.5 inches
Kyle has 1 5/6 of a box of pizza left. Carter has 2 1/4 box of pizza left. How much pizza do Kyle and Carter have all together.
1 5/6 + 2 1/14 = 4 1/12
What is 2/5 of 4 3/4
4 3/4 = 19/4
2/5 x 19/4 = 38/20 = 1 18/20
What is 8.9 divided by 1000
0.0089
Mike spent $289.15 on a new guitar. Elizabeth spent $50.00 more on her new guitar. In total, how much did Mike and Elizabeth spend?
$628.30
Joy drinks 4.5 bottles of water per day. Each bottle contains 16.5 fluid ounces. How many fluid ounces of water does she drink per day?
74.25 fluid ounces
According to a recipe, each batch of pancake mix can make 12 pancakes. Kathy is making 3 batches for a brunch party. If each batch needs cups of milk, how much milk does she need in total?
7/12 × 3 = 1 9/12 or 1 3/4
What is 1.53 divided by 0.09
17