Intro to Numerical Expressions

Which numeric expression matches this written expression?
two times the sum of eight and seven

• 2 x 87

• 2 + (8 + 7)

• 2 x 8 + 7

• 2 x (8 + 7)

Kyle has $4 and Alyssa has $6. Jenny has 3 times as much money as both Kyle and Alyssa combined. Which expression represents this situation?

• (3 x 4) + 6

• (3 x 4) x 6

• 3 x (4 + 6)

• 3 x (4 x 6)

Subtract 9 from 15 and divide by 3. 
Which numerical expression represents this statement?

• (15 - 9) ÷ 3

• (9 - 15) ÷ 3

• 3 ÷ (15 - 9)

• 3 ÷ (9 - 15)

Evaluate the numerical expression.
2(15 - 7) + 6

• 22

• 29

• 50

• 28

[ ( 6 x 3) ] x 2 ÷ 9

• 2

• 4

• 14

• 62

2 + (9² - 4)

• 16

• 77

• 79

What does 3² mean?

• 3 x 2

• 3 x 3

• 2 x 2 x 2

Multiply 2 and 12, and then subtract 8. Which numerical expression represents this statement?

• 8 - 12 x 2

• (12 x 2) - 8

• 2 x (12 - 8)

• 12 x (2 - 8)

40+(72÷9)÷8

• 49

• 25

• 41

• 15

Simplify the following:
(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75