Percent equation/proportion

Reorder the following to determine the part of a number.

• x

• percent as a decimal or fraction

• part

• whole

• =

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2

To convert a percent to a decimal

• divide the percent by 100

• move the decimal twice to the left

• multiply the decimal by 100

• move the decimal twice to the right

To convert a decimal to a percent

• divide the decimal by 100

• move the decimal twice to the left

• multiply the decimal by 100

• move the decimal twice to the right

To calculate change, ____ the new and old amounts.

• add

• subtract

• multiply

• divide

Tags

CCSS.6.NS.B.3

Reorder to show how to calculate the percent of change...

• subtract the new and old amounts to get the change

• move the decimal twice to the right or multiply by 100

• divide the change by the original amount

Tags

CCSS.6.RP.A.3C

Reorder the following to show how to solve a proportion

• Set up the proportion so there is something in common horizontally and vertically

• Cross-multiply up

• Divide by the coefficient (the number attached to the variable)

Tags

CCSS.7.RP.A.2C

To calculate error, ____ the estimated and actual amounts.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.NS.A.1

Reorder to show how to calculate the percent error...

• divide the error by the actual amount

• subtract the new and old amounts to get the error

• move the decimal twice to the right or multiply by 100

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2

To determine the estimated amount (prediction) in a percent error problem ____ the percent error as a decimal or fraction by the ____ amount, then ____ the product to or from the actual amount depending on the situation.

• multiply; actual; add or subtract

• multiply; estimated; divide or add

• divide; actual; multiply or subtract

• divide; estimated; add or subtract

Tags

CCSS.6.RP.A.3C

Which is the correct percent proportion?