Multiply by Exponents
2 X 101
20
2 tenths + 11 hundredths
0.14
Which is greater?
2 tenths + 11 hundredths
.211
Mr. Stichman distributed $96 to his 5 favorite students evenly. How much money does each student receive?
$19.2
2.5 X 2
5
8.4 / 2
4.2
3.2 X 101
32
13 tenths + 7 tenths + 32 hundredths
2.42
Which is the least?
13 tenths + 7 tenths + 32 hundredths
2.32
The science museum bought 3 bags of bones containing 2.3 pounds each. How many pounds did the the museum buy in all?
6.9 pounds
5.23 X 3
15.69
6.39 / 3
2.13
4.99 X 102
499
342 hundredths + 7 tenths is >,<,= than
3 + 50 hundredths
4.12 > 3.5
Mr. Cuthbert can buy rewards for his class with a down payment of $100 and 9 monthly payments of $12.55. If he pays cash for the toys it will cost $199.99. How much money will he save if he pays cash for his toys instead of the monthly payments?
$12.96
4.3 X 7
30.1
12.2 / 4
3.05
3.239 X 102
323.9
2 + 31 X (1/10) + 14 X (1/100) is <,>,=
2.345
5.24 > 2.345
Ross mixed 4.27 grams of sugar with 2.34 grams flour. After filling up 4 bags that are the same size of the mixture, he had 0.35 grams of mixture left. What is the amount of mixture per bag?
1.565 grams per bag
2.22 X 5
11.1
9.76 / 2
4.88
123.456 X 104
1,234,560
32 < 63
Dr. David mixed 9.357 grams of chemical A, 12.082 grams of chemical B, and 7.502 of chemical C to make 5 doses of medicine.
A) About how much grams of medicine did he make? Estimate the amount of each chemical by rounding to the nearest tenth before finding the sum.
B) Find the actual amount of medicine Dr. David mixed. What is the difference between the estimated amount and the actual amount?
C) How many grams are in one dose of medicine?
D) Round the weight of one dose to the nearest gram
E) Write the lowest chemical used in expanded, unit and word form.
A) 145 grams
B) 145 - 144.705 = .295 grams
C) 28.941
D) 29 grams
E) 7 + 5 X 0.1 + 2 X 0.001, 7 ones 5 tenths 2 thousandths, seven and five hundred two thousandths
12.61 X 4
50.44
13.415 / 5
2.683