Math Review Whole Number Operations

Simplify the following expression 2(4 + 6) ÷ 5 - 2 + 3

• 5

• 9

• 7

• 8

When simplifying the following, using order of operations, which operation should be performed first?

7 + 10 ÷ 5 • 8 - 3

• 8 - 3

• 10 ÷ 5

• 7 + 10

• 5 • 8

Bob solved the following problem using the steps below:

5(3 + 9) - 10 ÷ 2 + 5

Step 1: 5(12) - 10 ÷ 2 + 5

Step 2: 5(2) ÷ 2 + 5

Step 3: 10 ÷ 2 + 5

Step 4: 5 + 5

Step 5: 10

In which step did Bob make an error in following the order of operations?

• Step 1

• Step 2

• Step 3

• Step 4

Estimate the product of 8.7 and 7

• 56

• 63

• 80

• 90

1 + 5 * 6 [* means multiply]

• 36

• 31

• 35

What is the value of this expression?
[ 36 + (3×2) ] ÷ 6

• 7

• 37

• 13

6 times the sum of 12 and 8

• (12-8)x6

• (8x6)+12

• 12+(6x8)

• 6x(12+8)

What is the value of this expression? 3 [ 6 + (3×2) ] ÷ 6

• 7

• 37

• 6

5.25 ÷ 0.5 =

• 105

• 1.05

• 10.5

• 0.105

Bob spent $96.93 at the grocery store. What is $96.93 rounded to the nearest whole number?

• $96.90

• $97.00

• $100.00

• $96.00