Algebra II I'm Working Backwards

In the problem "Working backwards" we change "Division ( : )" to " ____"

• Subtraction (-)

• Multiplication (x)

• Addition (+)

• Unchanged

Find the values of D by working backwards.

• 20

• 15

• 5

• 60

Tags

CCSS.HSA.REI.A.1

Riaz thinks of a number. He says, 'Halve my number and then add 17 The answer is 23’ What is Riaz's number?

Tags

CCSS.7.EE.B.4A

Lara chooses a number less than 100 She divides it by 3 and then subtracts 11 She then divides this result by 2 Her answer is 10.5 What was the number she started with?

Tags

CCSS.7.EE.B.4A

What is the value of y in the solution to this system of equations?

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Gerardo wrote an integer. The opposite of Gerardo's integer is -53. The two true statements are:

​ (a)   and ​ (b)  

• The integer is 53.

• The integer has an absolute value of 53.

• The integer has an absolute value of -53.

• The integer is -53.

Tags

6.2.B

A company sold a total of 150 adult and child tickets to a fundraiser. The company charged $10 for each adult ticket and $6 for each child ticket for $350.

Write an equation to represent the total amount of tickets.

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8C

​ ​ (a)   a number finds the product of that number and itself.

• Squaring

• Square Rooting

Tags

CCSS.8.EE.A.2

Lara chooses a number less than 20

She divides it by 2 and then adds 6

She then divides this result by 3

Her answer is 4.5

What was the number she started with?

Tags

CCSS.7.EE.B.4A

Jemima has twice as much money as Matthew. Jemima has four times as much money as Sally. Sally has $3 more than Andrew. If Matthew has $14, how much money does Andrew have?

Tags

CCSS.8.EE.C.7B