Order of Operations
50 - (6 + 4) x 2
ANSWER: 30
Step 1: 6 + 4 = 10
Step 2: 10 x 2 = 20
Step 3: 50 - 20 = 30
A rectangle has a length of 4 inches and a width of 20 inches. What is the rectangle's perimeter?
ANSWER: 48 inches
Step 1: 4 + 20 + 4 + 20 = 48
80 x 400
32,000
In the fraction 1/2, which number is the numerator and which is denominator?
numerator = 1
denominator = 2
Write a numerical expression for the following calculation:
Multiply the sum of 20 and 30 by 200 equals 10,000
(20 + 30) x 200 = 10,000
[6 x (9 - 5)] / (3 x 2)
ANSWER: 4
Step 1: 9 - 5 = 4
Step 2: 6 x 4 = 24
Step 3: 3 x 2 = 6
Step 4: 24 / 6 = 4
A rectangle has a length of 45 cm and a width of 10 cm. What is the rectangle's area?
Area = 450 square centimeters
720 / 90
8
Write down 5 fractions that are equal to 1/2.
2/4, 3/6, 4/8, 5/10, 6/12...
Gerry Gardens buys 5,400 flower bulbs. If 90 bulbs can be planted in each flower bed, how many flower beds are needed to plant all the bulbs?
ANSWER: 60 flower beds are needed.
5,400 / 90 = 60
(32 + 8) / 8 x 400
ANSWER: 2,000
Step 1: 32 + 8 = 40
Step 2: 40 / 8 = 5
Step 3: 5 x 400 = 2,000
A rectangular prism has a length of 12 meters, a width of 10 meters, and a height of 2 meters. What is the volume of the rectangular prism?
240 cubic meters
12 x 10 x 2 = 240
Part of Barry's solution for 34 x 68 is shown below.
30 x 60 = 1800
30 x 8 = 240
4 x 60 = 240
What step should Barry do next?
ANSWER: 4 x 8 = 32
Put these fractions in order from least to greatest.
2/3
1/4
7/8
5/10
1/8
1/8, 1/4, 5/10, 2/3, 7/8
Write a numerical expression for the following calculation:
Divide the difference of 300 and 240 by 20 equals 3
(300 - 240) / 20 = 3
25 + 2 x 12 - 4 x 3 x (8 - 6)
ANSWER: 25
Step 1: 8 - 6 = 2
Step 2: 2 x 12 = 24
Step 3: 4 x 3 = 12
Step 4: 12 x 2 = 24
Step 5: 25 + 24 - 24 = 25
Area = 5 x 5 = 25 square yards
Perimeter = 5 + 5 + 5 + 5 = 20 yards
Part of Larry's solution to 630 / 42 is shown below.
420 / 42 = 10
630 - 420 = 210
210 / 42 = 5
What step should Larry do next?
ANSWER: 10 + 5 = 15
What is 1/8 + 3/4?
ANSWER: 28/32 or 7/8
What is the answer to an addition problem called?
What is the answer to a subtraction problem called?
What is the answer to a multiplication problem called?
What is the answer to a division problem called?
Addition answer is SUM
Subtraction answer is DIFFERENCE
Multiplication answer is PRODUCT
Division answer is Quotient
(250 - 175) x 32 + (320 / 8)
ANSWER: 2,400
Step 1: 250 - 175 = 75
Step 2 : 320 / 8 = 40
Step 3: 75 x 32 = 2,400
Step 4: 2,400 + 40 = 2,440
A rectangular prism has a volume of 42 cubic inches. It's length is 2 inches and it's width is 3 inches. What is the height of the prism?
ANSWER: 7 inches
Step 1: 2 x 3 = 6
Step 2: 42 / 6 = 7
Solve and show your work to 58 x 98. Use any strategy and show your work.
ANSWER: 5,684
Step 1: 50 x 90 = 4,500
Step 2: 50 x 8 = 400
Step 3: 8 x 90 = 720
Step 4: 8 x 8 = 64
Step 5: 4,500 + 400 + 720 + 64
Which number sentence is greater:
(2/3 + 1/5) or (1/3 + 4/5)
(1/3 + 4/5)
STEP 1: 2/3 + 1/5 = 13/15
STEP 2: 1/3 + 4/5 = 17/15
What is an angle that is less than 90 degrees called?
What is an angle that is between 90 and 180 degrees called?
What is a 90 degree angle called?
Less than 90 is ACUTE ANGLE
Between 90 and 180 is OBTUSE ANGLE
Exactly 90 is RIGHT ANGLE