Decimals
3.5 + 2.75 =
6.25
1/4 + 2/4 =
3/4
What is 25% of 80?
20
Write 5,000 in Scientific Notation
5 x 103
8.4 x 0.6 =
5.04
2/3 x 3/5 =
2/5
18 is what percent of 60?
30%
Write 0.00072 in Scientific Notation
7.2 x 10-4
15.75 / 2.5 =
6.3
3/4 divided by 1/2
1 1/2
A $50 item increases in price by 20%. What is the new price?
$60
(3 x 104) x (2 x 102)
6 x 106
A shirt costs $24.80 and is discounted by $6.75. What is the new price?
$18.05
A recipe needs 2 1/2 cups of flours. You make 3/4 of the recipe. How much flour do you need?
1 7/8 cups
A jacket is 30% off and costs $42 after the discount. What was the original price?
$60
4 x 104
A scientist measures a distance of 3.6 x 104 meters. He completes 25% of the distance on Monday and 50% remaining distance on Tuesday. How many meters are left?
Convert: 3.6 x 104 = 36,000
Monday: 36,000 x 25% = 9,000
Remaining: 36,000 - 9,000 = 27,000
Tuesday: 27,000 x 50% = 13,500
Final remaining: 27,000 - 13,500 = 13,500