Simplifying Numerical Expressions

Solve.
 (16-6) x (2+4)

• 0
• 8
• 24
• 60

Solve.
5 x (7 - 4) - 3 x 2

• 0
• 18
• 9
• 15

Solve.
7 x [32 - (3 x 4)]

• 884
• 812
• 212
• 140

Which numeric expression matches this written expression?
add four and nine and then multiply by six

• (6-4)x9
• (4+9)x6
• 6x9+4
• 9x4-6

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)

Which operation should be performed first?

• 4 x 6
• (30 - 3)
• ÷ 3

Simplify the expression.

• 5
• 10
• 20
• 15

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error