Expanded form
500+40+6
354
+ 512
______________
866
237
- 115
_______
122
Which property adds a zero?
Identity property
How many cookies did you sell if you sold 320 chocolate cookies and 270 vanilla cookies?
590 cookies
Write 810 in expanded form.
800+10+0
380
+ 750
___________
1,130
756
- 376
_________
382
Associative property
Nathan has a big ant farm. He decided to sell some of his ants. He started with 965 ants. He sold 213. How many ants does he have now?
752 ants are left
Write 693 in expanded form.
600+90+3
245
+ 468
___________
713
854
- 468
___________
386
18+0=
18
Anne has 210 rock songs and 326 hip-hop songs in her IPod. How many songs does she have?
536 songs
Using partial sums(expanded form) add 233+126.
200+30+3
100+20+6
___________
300+50+9= 359
356
+ 459
_________
815
621
- 359
________
262
4+(2+6)=(4+?)+6
?=2
As part of the Girl Scouts Program, a group set up a stall with a total of 321 cookies. How many cookies did they sell if 187 of them remain?
134 cookies were sold
Using partial differences(expanded form) subtract
695-124.
695-100=595
595-20=575
575-4=571
628
+ 212
___________
342
- 192
_______
149
(8+1)+3=?+(1+3)
?=8
Jim saved 304 cents and Jill saved 276 cents in their piggy bank for Christmas. How much money did they save together?