Selecting Operations

Selecting Operations

Review lesson for choosing correct operations.

Multiple Select

Mr. Clark gave 4 lollipops to each of his 8 students.

Now he only has 19 lollipops left.

How many lollipops did Mr. Clark have at first?

• Addition

• Subtraction

• Multiplication

• Division

Multiply then Add

First find out how many lollipops he gave away. Then, add how many he had left to how many he gave away.

Multiple Select

There are 24 bicycles for sale at Wheelworks.

One half of the bicycles are red.

Three of the bicycles are black.

The rest are blue.

How many bicycles are blue?

• Addition

• Subtraction

• Multiplication

• Division

Divide, Add, then Subtract

First, figure out how many bikes are red by dividing 24 by 2 to get half. Then, add the red and black bicycles. Last, subtract the amount of red and black bikes from the total number of bikes to get the number of blue bikes.

Multiple Select

Vicky has 5 stickers.

Tracy has 3 times as many stickers as Vicky but only half as many as Meghan.

How many stickers does Meghan have?

• Addition

• Subtraction

• Multiplication

• Division

Multiply then Multiply Again

Multiply the number of Vicky's stickers by three to see how many stickers Tracy has. Then, multiply the number of stickers Tracy has by 2 to find out how many Meghan.

Multiple Select

There were 15 spelling words on the test.

Peter spelled 9 words correctly.

Miguel spelled 7 words correctly.

How many words did Miguel spell incorrectly?

• Addition

• Subtraction

• Multiplication

• Division

Subtract

Just subtract the number of words Miguel got wrong from the total number of words. Ignore distracting information like the amount Peter missed.