Adding/ Subtracting Fractions
13.98 + 2.01
15.99
3.4 x 1.5
5.1
11.5 divided by 0.5
23
4/5 x 3/11
12/55
True or False: When dividing decimals, you move the decimal back after you have finished finding your answer.
False; when multiplying, you only move the decimal back after you find your answer.
24.04 - 11.78
12.26
12.5 x 6.1
76.25
225.78 divided by 1.1 (Round to the nearest hundredth)
205.25
2 3/4 x 7/8
77/32
What is a reciprocal?
The flipped version of a fraction
126.97 + 103.55
230.52
0.00000005 x 1.13
0.0000000565
718.08 divided by 13.6
52.8
5/9 divided by 7/11
55/63
What is the acronym for dividing fractions, and what does it mean.
KCF: Keep, Change, Flip
348 - 1.889
346.111
134.56 x 83.2
11,195.392
1009.5 divided by 98.2 (Round to the nearest hundredth)
10.28
5 1/6 divided by 3/7
217/18
What are the first and second rule when multiplying decimals?
Line up the end numbers; move the decimals out of the way.
Ms. Lizzie went to Lowes with $5000 to spend on supplies for a new back deck. She bought planks of wood for $2498.99 and other materials for $1900.45. Does she have enough money for the materials? If so how much will she have left to use to buy paint?
Yes, 600.56
For her Deck, Ms. Lizzie paid $5.50 for each foot of wood. How much would she pay for 187.45 feet of wood? Round to the nearest hundredth.
$1030.98
In 1945, the price of a jug of milk was $0.63. Now the price of a jug of milk is $3.29. How many times more expensive is milk today compared to 1945?
5.2 or 5.22 times as much
The trail around Mr. Promise's neighborhood is 3 1/2 miles long. By the end of the year, the trail is to be 3/4 times of the length it is now. How long will the trial be?
21/8 miles long
What is the first rule when adding or subtracting decimals?
Line up the decimals