Percentage
What is 50% of 150?
Kaden: 50 + 150 =
150 divided by 2 (2 is half or 50%) = 75
Kaden: 50 + 150 = 200
A rectangle has a length of 5 cm and a width of 3 cm. What is its perimeter and area?
Kaden: 5 X 3 =
5 + 3 + 5 + 3 = 16 cm perimeter
5 x 3 = 15 cm squared area
Kaden: 5 X 3 = 15
Jane bought a shirt for $10.50 and two pairs of sunglasses for $4.25 each. If she paid with a 20-dollar bill, how much change should she get back?
Kaden: How many quarters do you need to make one dollar?
10.50+4.25+4.25=19.00
20.00-19.00=$1.00 change
Kaden: four
What is x?
2X + 5 = 35
Kaden: What is 35 - 5 =
X=15
Kaden: 35 - 5 = 30
What place value is the 5 in?
4 852 000
ten thousands
What is 10% of 90?
Kaden: 10 + 90 =
To find 10% of a number you move the decimal one to the left,
10% of 90 is 9
Kaden: 10 + 90 = 100
A rectangle has a length of 7 cm and a width of 6 cm. What is its perimeter and area?
Kaden: 7 X 6 =
7 + 6 + 7 + 6 = 26 cm perimeter
7 x 6 = 42 cm squared area
7 X 6 = 42
In one week a restaurant sold 350 lunch specials for $8.00 each. How much money did they make in selling the lunch specials?
Kaden: How many dimes do you need to make one dollar?
350 X 8.00 = $2800.00 total
Kaden: ten
What is x?
4X + 5 = 41
Kaden: what is 41 - 5 =
X=9
Kaden: 41 - 5 = 36
What place value is the 2 in?
2 538 194
millions
What is 25% of 248?
Kaden: 25 + 248 =
To find 25% of a number you take the whole number and divide it by 4.
248 divide by 4 = 62
Kaden: 25 + 248 = 273
A square has a length of 7 cm. What is its perimeter and area?
Kaden: 7 X 4 =
7 + 7 + 7 + 7 = 28 cm perimeter
7 x 7 = 49 cm squared area
Kaden: 7 X 4 = 28
John, Jane and Jim each received a weekly allowance of $15.50. At the end of four weeks how much in total did they receive for their allowance?
Kaden: How many nickels do you need to make fifty cents?
15.50 X 3 = $46.50 in total for three people, $46.50 X 4 (weeks)= $186.00 in total
Kaden: ten
What is x?
7X - 6 = 43
Kaden: What is 43 - 6 =
X=7
Kaden: 43 - 6 = 37
What place value is the 3 in?
1 302 670
hundred thousands
What is 30% of 180?
Kaden: 30 + 180 =
Find the 10% = 18. Add 18+18+18= 54
30% of 180 is 54
Kaden: 30 + 180 = 210
A triangle has a base of 9 cm, both sides are 12 cm a height of 18 cm. What is its perimeter and area?
Kaden: 9 X 12 =
=33 cm perimeter
9 X 18 divided by 2 = 81 cm squared area
Kaden: 9 X 12 = 108
Ms. Jay bought 9 kg of steak and 7 kg of chicken from the store. If she paid $8.50 per kg of steak and $7.00 per kg of chicken, how much did the meat cost her?
Kaden: How many dimes and nickels do you need to make seventy five cents?
9 X 8.50 = $76.50 the steak cost
7 X 7.00 = $49.00 the chicken cost
total $125.50
Kaden: seven dimes, one nickel
What is x?
3X - 6 = 21
Kaden: What is 21 - 6 =
X= 9
Kaden: 21 - 6 = 15
What place value is the 6 in?
2 086 075
thousands
What is 70% of 80?
Kaden: 70 + 80 =
70% of 80
cross multiply, 100X = 70X80=5600 divide by 100 = 56
Kaden: 70 + 80 = 150
A rectangle has a perimeter of 56 cm and an area of 192 cm squared. Its length is 16 cm what is its width?
Kaden: 5 X 12 =
16 + 16 = 32
56 - 32 = 24 divide 2 = 12 cm width
16 x 12 = 192 cm squared
Kaden: 5 X 12 = 60
A fisherman sold two kinds of salmon. Pink salmon sold for $5.20 per kg, and sockeye sold for $7.50 per kg. If he sold 5 kg of pink salmon and 12 kg of sockeye, how much was the total value of the sales? He has $120.00 in his wallet does he have enough money? If so, how much does he get back?
Kaden: How many quarters make $4.00?
5.20 X 5 = $26.00
7.50 X 12 = $90.00
21.00 + 90.00 = $116.00
120.00 - 116.00 = $4.00 back
Kaden: 16 quarters
What is x?
4X = 12 X 3
Kaden: 24 - 4 =
X= 9
Kaden 24 - 4 = 20
What place value is the 2 in?
13 976 257
hundreds