Inverse Operations

Inverse Operations

Multiple Select

Select ALL inverse operations for

$$11-7=4$$  

• $$11-4=7$$  

• $$4+7=11$$  

• $$7+4=11$$  

• $$7-4=3$$  

Multiple Select

Select ALL inverse operations for

$$24+5=29$$  

• $$24-5=19$$  

• $$5+24=29$$  

• $$29-5=24$$  

• $$29-24=5$$  

Multiple Select

Select ALL inverse operations for

$$199-99=100$$  

• $$199-100=99$$  

• $$99+100=199$$  

• $$100-99=1$$  

• $$100+99=199$$  

Multiple Select

Select ALL inverse operations for

$$30+50=80$$  

• $$80-30=50$$  

• $$80-40=40$$  

• $$8-5=3$$  

• $$50+30=80$$  

Multiple Select

Select ALL inverse operations for

$$345+65=410$$  

• $$65+345=410$$  

• $$410-65=345$$  

• $$410-345=65$$  

• $$345+41=650$$  

Multiple Choice

Fill in the blank:

Addition and subtraction are inverse operations because one ____________ the other.

• Undoes

• Looks like

• Is easier than

• Is harder than

Multiple Choice

What operation would you use to check your answer to a subtraction problem?

• Addition

• Multiplication

• Division

Multiple Choice

Which operation would you use to check your answer to an addition problem?

• Multiplication

• Division

• Subtraction

Multiple Select

Select ALL inverse operations for

$$5+5=10$$  

• $$5+5=10$$  

• $$10+5=15$$  

• $$5-5=0$$  

• $$10-5=5$$  

Multiple Select

Select ALL inverse operations for

$$3+p=15$$  

• $$15-p=3$$  

• $$15+3=18$$  

• $$3+15=18$$  

• $$15-3=p$$  

Multiple Select

Select ALL inverse operations for

$$25+21=46$$  

• $$46-21=25$$  

• $$46-25=21$$  

• $$46+21=67$$  

• $$67-21=46$$  

Multiple Select

Select ALL inverse operations for

$$20-t=14$$  

• $$20+14=34$$  

• $$14+t=20$$  

• $$t+14=20$$  

• $$14+14=28$$  

Multiple Select

Select ALL inverse operations for

$$3+30=33$$  

• $$33-3=30$$  

• $$33-30=3$$  

• $$30+3=33$$  

• $$30-3=27$$  

Multiple Select

Select ALL inverse operations for

$$450-27=423$$  

• $$450+27=477$$  

• $$450+423=873$$  

• $$423+27=450$$  

• $$27+423=450$$  

Multiple Select

Select ALL inverse operations for

$$2000-764=1236$$  

• $$2000-1236=764$$  

• $$2000+764=2764$$  

• $$1236+764=2000$$  

• $$2000+1236=3236$$  

Multiple Choice

You can use the inverse operation to...

• Check your answer

• Do nothing

• Get extra credit

Multiple Choice

Fill in the blank:

____________ is the inverse operation of subtraction.

• Addition

• Multiplication

• Division

Multiple Choice

Fill in the blank:

____________ is the inverse operation of addition.

• Subtraction

• Multiplication

• Division

Multiple Choice

Which equation could you use to check your answer to $$15+17=32$$  ?

• $$32-15=17$$  

• $$32+15=47$$  

• $$47-32=15$$  

• $$17-15=2$$  

Multiple Choice

Which equation could you use to check your answer to $$730-50=680$$  ?

• $$780-50=730$$  

• $$730+50=780$$  

• $$680-50=630$$  

• $$680+50=730$$