Order of Operations #1 Evaluate the express :  (8+3)2 - 3 + 8 The Answer is:  126 #2 Evaluate the expression:  100 - 80 ÷ 4 + 3 The answer is:  83 #3 Evaluate the expression:  6 + 7 × 9 The answer is 69 #4 Evaluate the expression: 52 × 4 ÷ 2 - (8-3) The answer is:  45 #5 Here is how a student simplified an expression.  Is this correct? If not, where did the student amek a mistake? 2 × (12-3)2 +7 2 × (12-9) + 7 2 × 3 + 7 6 + 7 13 Answer: The student did not subtract 12 - 3 before squaring.  It should look like this: 2 × (12-3)2 + 7 2 × 92 + 7 2 × 81 + 7 162 + 7 169
 Decimals #1 Evaluate the following expression: 7.68 + 2.24 Answer is:  9.92 #2 Evaluate the expression: 40.4 - 5 The answer is:  35.4 #3 Evaluate the expression:  8.4 × 0.35 The answer is:  2.940 #4 Evaluate the expression: 6.00 ÷ 0.8 The answer is: 7.5 #5 Evaluate the expression: 281.06 ÷ 4.6 The answer is: 61.1
 Fractions #1 Evaluate the expression: 3/10 + 1/5 The answer is: 1/2 #2 Evaluate the expression: 5 1/2 - 7/10 The answer is: 4 4/5 #3 Evaluate the Expression: 2 1/10 × 3 1/6 The Answer is: 6 39/60 #4 Evaluate the Expression: 2/5 ÷ 7/8 The Answer is: 16/35 #5 Evaluate the Expression: 7/8 ÷ 5 The Answer is: 7/40
 Multiples and Factors #1 List all the factors of 64 The Answer is: 1,2,4,8,16,32,64 #2 List the first five Multiples of 16. Answer: 16, 32, 48, 64, 80 #3 What is the GCF of 84 and 120? Answer: 84 - 1,2,3,4,6,7,12,14,21,28,42,84 120 - 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120 GCF is 12 #4 What is the LCM of 5, 6, and 10? Answer:  5- 5,10,15,20,25,30,35,40,45,50 6, - 6,12,18,24,30,36,42,48 10 - 10,20,30,40,50 LCM is 30 #5 In a parade, 18 boys and 24 girls are merching in seperate rows.  Each rwo requires the same number of students.  What is the greatest number of students that can be in a row? Answer: Look for the GCF 18 - 1,2,3,6,9,18 24 - 1,2,3,4,6,8,12,24 The GCF is 6.  Therefore the greatest number of students that can be in a row is 6.
Area and Perimeter
#1

What is the perimeter of a rectangle with width of 25 m and a heigth of 12 m?

#2

What is the area of a a Parallelogram with base of 15 yd and a height of 12 yd?

Area is 180 yd2

#3

What is the area of a triangle witha base of 5 in and a heigth of 3 in?

A =  1/2 bh

7.5 in22

#4

Find the area of a triangle owith heigth of 27 cm and a base of 25 cm.

A = 1/2 bh

A = 337.5 cm

#5

Find the circumference of a circle with a radius of 5 in.

C = 2∏ r