Addition Property
Which addition property is this equation:
55+0=
Identity
ROUND to the nearest 100 and then add...
321+403
300+400=700
56+98=
154
77+7=
84
Kynidee brought three pencils to school. Jolee brought 7. How many pencils do they have altogether?
3+7=10 pencils
Which addition property is this equation:
3+(2+4)=
(3+2)+4=
Associative
Round to the nearest HUNDRED and then add...
657 + 778 =
700+800=1,500
$362+$428=
$790
10+66=
76
Skyler made 17 paper airplanes. Kyson made twelve. How many did they make in all?
17+12=29 airplanes
Which addition property is this:
3+9=
9+3=
Commutative
32 + 34 =
30+30=60
108+156=
264
42+29=
71
Jackson has 11 crayons. Jaylnn gave him 18 more. How many does he have now?
11+18= 29 crayons
Give me an example of an identity addition problem....
answers will vary
Round to the nearest TEN and then add...
78 + 89 =
80+90=170
1,233 + 276 =
1,509
560+30=
590
Cassidy baked 4 cupcakes. Chloe baked 3 brownies. Kayden baked 12 sugar cookies. How items do they have?
4+3+12=19 items
give me an example of a commutative addition property....
answers will vary
Round to the nearest TEN and then add..
315 + 203 =
320+200=520
1,567 + 2,821
4,388
451+230=
681
Nathan caught 16 fish! Axton caugh 12! Bella caught 9! How many fish were caught in all?
16+12+9= 37 fish