Algebraic Expressions and Substitution

Three times a number increased by nine

• 3h-9
• 3(h-9)
• 3(h+9)
• 3h+9

Tags

CCSS.6.EE.A.2A

The difference of h and 9 divided by 3.

• h-9/3
• (h-9)/3
• (9-h)/3
• 9-h/3

The product of 7 and j increased by 3.

• 3+7j
• 7j-3
• 7(j+3)
• 3j+7

Tags

CCSS.6.EE.A.2A

Six divided by the product of -7 and b.

• 6/(b-7)

• 6/(-7b)

• (-7b)/6

• (b-7)/6

Five times Mike's age increased by 9

• 5(x+9)
• 9(5+x)
• 9x+5
• 5x+9

Tags

CCSS.6.EE.A.2A

You traveled 52 miles. Then, your avg rate is 12 mph. What algebraic expression models the distance?

• 52+12/h

• 12/h-52

• 12h+52

• 12-52

Choose the phrase that matches the expression   21h

• 21 more friends than expected at the party
• 21 more horses in the pasture
• 21 dollars per hour
• 21 balloons were popped at the party

Tags

CCSS.HSA.SSE.A.2

CCSS.7.EE.A.2

Evaluate expression: 5a + b for a= 6 and b= 3

• 33
• 36
• 30
• 59

Evaluate expression:
½a - 5b
when a= -12 and b= -3

• -21
• -9
• 9
• 21

What is the value of
xy + 2z,
when x = -2, y = 4 and z = -5

• -2
• 28
• 18
• -18