Adding Sums
25+ 13=
38
Estimate 127 and 269 to the nearest 100 and find the sum
127= 100
269=300
100+300=400
39-18=
21
34+29=
63
Write your 10 bodies on the whiteboard
10/0
1/9
2/8
3/7
4/6
5/5
Jen has 35 stickers in her collection
She get 42 stickers for her birthday
What is the sum of all her stickers together?
77 stickers
TV at store A = $768
TV at store B= $872
Estimate both prices to the nearest 10
What is the difference between the Tvs?
768=770
872=870
870-770=100
94-42=
52
72-9=
61
5 groups of 3
15
142+ 257=
399
Estimate 837 and 549 to the nearest 100
Find the sum
Nearest 100
437=400
549=500
400 +500 = 900
Conway scored 27 points in a game. Natalie scored 15 points less than Conway. What is the number of points that Natalie scored
12 Points
173+28=
8X3=
24
Jill has 52 beans
Jonny has 135 beans
What is the sum of Jill and Johnny's beans together?
Estimate 583 and 329 to the nearest 10
Find the Difference
Estimate 583 and 329 to the nearest 100
Find the difference
nearest 10
582=580
329=330
580- 330=250
Nearest 100
582=600
329=300
600-300=300
549-216=
333
205
-
188
_________
17
What does the word sum mean?
add two numbers together
1,427
+
4,371
_____________
5,798
You have $400 to buy a new bike
Store A Bike Costs $387
Store B bike costs $402
Estiamte the bike costs to the nearest 10
Which Store is the cheaper choice
Store A
387=390
402= 400
5,713- 2,401=
3,312
1,626
+
2,495
4,121
Write 2000+500+0+9 in standard form
2,509