Simplify Numerical Expressions

In which numeric expression will 4 + 5 be the first step in simplifying?

• 16 - 4 + 5

• 4 + (5 x 2)

• 9 x (4 + 5) - 2

• 4 + 5[9 - (6 + 2)]

• Add 5 and 3.

• Divide 15 by 5.

• Multiply 8 by 40.

• Subtract 15 from 40.

Mary has 3 boxes of key chains. There are key chains in each box. Each key chain has 6 beads. The expression below shows the total number of beads on these key chains.

(3 x 8) x 6

Which expression could also be used to fin the total number of beads on these key chains?

• 6 x (3 x 8)

• 6 + (3 x 8)

• 6 x (3 + 8)

• 6 + (3 + 8)

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

• 16

• 2

• 72.25

• 8.75

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

• 0

• 18

• 9

• 15

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)

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

• 22

• 29

• 50

• 28

[ ( 6 x 3) ] x 2 ÷ 9

• 2

• 4

• 14

• 62