What is the reciprocal of the following number: 3/4?
The reciprocal (or opposite) of 3/4 is 4/3.
100
Add the following decimals: 1.25 + 1.35
2.60
100
Multiply the following decimals: 1.8 x 1.1
1.98
100
Divide the following decimals: 1.8 ÷ 2
0.9
200
what is 2/5 x 1/2?
2/10 --> simplified to 1/5
200
Divide the following fraction: 1/5 ÷ 3/4
4/15
200
Subtract the following decimals: 1.86-1.26
0.60
200
Multiply the following decimals: 6 x 3.91
23.46
200
Divide the following decimals: 7.6 ÷ 4
1.9
300
what is 1&4/5 x 3&2/3?
33/5 which is 6&3/5
300
Divide the following mixed number: 3&5/6 ÷ 1&2/3
23/10 which is 2&3/10
300
What is the most important rule to remember when adding and subtracting decimals?
You must line up the decimal points!
300
Multiply the following decimals: 3.472 x 4
13.888
300
Divide the following decimals: 22.2 ÷ 6
3.7
400
Find the area of a rectangular air hockey table that is 8&1/4 feet by 4&3/8 feet.
(Hint: area of a rectangle = length x width)
36&3/32ft
400
You use 1/8 of your battery for every 2/5 of an hour that you FaceTime. You use 3/4 of your battery FaceTiming. How long did you FaceTime?
2&2/5 or 2 hours and 24 minutes
400
You order the sausage and eggs breakfast which is $3.95 and your friend orders the ham omelet which is $4.35. What is your total before taxes and tip?
$8.30
400
The weight of an object on the Moon is about 0.167 of its weight on Earth. How much does a 180-pound astronaut weigh on the moon?
30.06 pounds
400
You send 40 text messages in one month. The total cost is $4.80. How much does each text cost?
$0.12
500
You exercise for 3/4 of an hour. You jump rope for 1/3 of that time. What fraction of the hour do you spend jumping rope?
What is 1/4 of an hour.
500
How many 1&3/5-inch books can fit on a 14&1/2-inch long bookshelf?
9 books
500
You work 1.15 hours on English homework and 1.75 hours on math homework. Your social studies homework takes 1.05 hours less than your math homework. How many hours all together do you work on your homework?
3.6 hours
500
A bamboo plant grows about 1.25 feet each day. Find the growth in one week.
8.75 ft.
500
One bottle of sunblock is 4 ounces and costs $8.49. A different brand sells a bottle of sunblock that is 5 ounces and costs $10.29. Which is the better buy?
The 5-ounce bottle. The price per-ounce is $2.06 for the 5 ounce bottle and $2.12 for the 4 ounce bottle.