Show:
addition
subtraction
addition and subtraction
inverse operation
100

100 + 462 = 

562

100

530 - 20 = ___

510

100

460 + 160 =

620

100
What is the inverse operation for 3 + ___ = 10?

10 - 3 = ___

200

229 + 150 = 

379

200

127 - 3 = 

124

200

620 - 140 =

480

200

What is the inverse operation for ___ + 6 = 13

13 - 6 = ___
300

507 + 219 =

726

300

700 - 250 = 

450

300

480 + 425 = 

905

300

What is the inverse operation for 19 - 8 = ___

___ + 8 = 19
400

883 + 116 =

999

400

800 - 110 = 

690

400

905 - 815 =

90

400

What is the inverse operation for 500 - 50 = ___?

50 + ___ = 500

500

348 + 552 =

900

500

480 - 60 = 

420

500

90 + 525 = 

615

500

What is the inverse operation for 5 + ___ = 10?

10 - 5 = ___