Addition
40+8
48
15-8
7
Ms. Kepner has 18 pencils. She buys 12 more. How many pencils does she have now?
30 pencils
400+50+3
453
78 [ ] 32
78 > 32
20+18
38
28-12
16
The classroom has 35 chairs. We give 13 chairs to another class. How many do we have left?
22 chairs
300+8
308
148 [ ] 491
148 < 491
48+39
87
81-17
54
Arie has chewed up 28 toys. Echo has chewed up 12 toys. How many more did Arie chew up than Echo?
16 more toys
4+800+20
824
82 [ ] 89
82 < 89
143+119
262
373-148
225
I had 41 stickers and then bought 28 more of them. Then I gave away 35 stickers to students. How many do I have now?
44 stickers
8+40+100
148
489 [ ] 483
489 > 483
286+159
445
523-187
336
168 cars
300+90
390
419 [ ] 491
419 < 491