Adding and Subtracting 3-Digit Numbers

Adding 3-Digits

100

   130+54

184

200

 258+43

301

300

537+285

855

400

827+372

1,199

500

927+583

1,510

Subtracting 3-Digits

100

384-24

360

200

382-91

291

300

492-158

334

400

947=389

558

500

1,572-695

877

2 Step Problems

100

There are 20 beads in a bucket. 3 beads are added to the bucket, then 15 are used to make a bracelet. How many beads are left?

8 beads

200

There are 50 beads in a bucket. 17 beads are used, then 23 are added to the bucket. How many beads are left?

56 beads

300

Sarah has 153 apples after she went apple picking. She used 67 apples to make pies. Then she used 42 to make apple sauce. How many apples are left?

44 apples.

400

Bob has 639 Legos. He uses 274 to build a spaceship. He then uses 127 more to build a car. How many Legos are left?

238 Legos

500

At the store, there are 1,487 boxes of mac and cheese. 15 customers buy 387 boxes. The store workers put out 136 more boxes on the shelf. How many boxes are left?

964 boxes