Add partial sums
Use Partial sums to add
356+239=
300+200=500
50+30=80
6+9= 15
595
Add
418+256=
674
52+83=83+52
Which property of addition is this?
Commutative Property of Addition
Estimate by rounding to the nearest Ten
236+139=
380
7+ EVEN =
ODD
Use Partial sums to add
462+385=
400+300=700
60+80=140
2+5=7
847
Add
784+108=
(38+50)+4=(50+38)+4
Which Property is this?
Commutative Property of Addition
Estimate by rounding to the nearest Ten
387+564=
950
13+Odd=
Even
307+536=
300+500=800
0+30=30
6+7=13
843
Add
418+243+302=
963
Find the missing number
__+61=61
0
Estimate by rounding to the nearest Hundred
257+422=
700
James and Ben each have $132. Sarah saves $146. How much money do they have together?
$278 all together
use Partial sums
496+189=
400+100=500
90+80=170
6+9= 15
685
Ms. Stevens bought two sweaters for $48 each and a pair of jeans for $36. How much money did Ms. Stevens spend on the clothes?
$132
__+42+53=42+53
find the missing number
0
Estimate by rounding to the nearest Hundred
368+264=
700
There are 15 ice cream cups that have been delivered. We did not get any Ice cream cones. Use the Identity Properties of Addition to write an equation showing how many ice cream cups you got today
15+0=15
The Zoo has 422 insects, 353 Birds and 211 Reptiles. How many are there all together? Add by using partial sums. Show me your work
400+300+200= 900
20+50+10= 80
2+3+1=6
986 In all
Victoria delievered 54 newspapers on Friday
72 newspapers each on Saturday and Sunday.
Draw a model to show how many newspapers victoria delivered in all.
Include the total in the drawing
l198 newspapers l
l 54 l 72 l 72 l
Which addition property is shown by (50+72)+3= 50+(72+3)?
The Associative Property- the way the addends are grouped does not change a sum
Alex has $150. He spends $133 on a brand-new bike. Estimate how much money Alex has left after buying the bike?
About $20
Which sums are correct?
A. 364+198=562
B. 437+286=713
C. 524+378=902
A and C