386 __ 195
386 > 195
18+41=59
What is the estimated equation and sum?
20+40=60
907+56=
963
The second and third grade students are going on a field trip to the zoo. There are 87 students in second grade and 74 students in third grade. How many more students are in second grade than in third grade?
87-74=13
There are 13 more students in second grade than in third grade.
Use addition to check your work:
47-19 = _____.
47-19 = 28
28+19 = 47
591 __ 519
591 > 519
312+189=501
What is the estimated equation and sum to the nearest hundred?
300+200=500
86-59=
27
The third-grade classes collected bugs. Class 3A collected 128 bugs. Class 3B collected 119 more bugs than Class 3A. How many bugs did Class 3B collect?
128+119=247
Class 3B collected 247 bugs.
Use addition to check your work:
484-168 = ___
484-168 = 316
316+168= 484
617 __ 617
617 = 617
457+294=751
What is the estimated equation and sum to the nearest hundred?
500+300=800
527+168=
695
Mom bought a bag with 415 nuts to feed the squirrels during the winter. Dad bought a bag with 250 nuts. How many more nuts are in Mom's bag than in Dad's bag?
415-250=165
Mom's bag has 165 more nuts than in Dad's bag.
Use addition to check your work:
587-25 = ___
587-25 = 562
562+25 = 587
485 __ 50+9
485 > 50+9
592+349=941
What is the estimated equation and sum?
600+300=900
980-90=
890
At the beginning of the week, a gift shop had 133 t-shirts and 128 mugs. At the end of the week, there were 39 t-shirts and mugs left in the shop. How many t-shirts and mugs did the shop sell that week?
133+128=261
261-39=222
The shop sold 222 t-shirts and mugs that week.
Use addition to check your work:
435-129 = ___
435-129 = 306
306+129 = 435
346 __ 300+60+4
346 < 300+60+4
502+791=1,293
What is the estimated equation and sum?
500+800=1,300
481+230+215=
926
For a bake sale, the third grade class had 216 cookies and 168 cupcakes. At the end of the sale, there were 46 cookies and cupcakes left. How many cookies and cupcakes did the class sell during the bake sale?
216+168=384
384-46=338
The class sold 338 cookies and cupcakes during the bake sale.
Use addition to check your work:
607-246 = ___
607-246 = 361
361+246 = 607