Post on 03-Oct-2020
Created byALL SORTS OF MATH
Number Talks Strategies Posters
COMMON CORE MATHEMATICSK 1st 2nd
2016
©A
ll S
orts
of
Mat
h
2016
©A
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orts
of
Mat
h
ADDITION STRATEGY
Make a FiveMake a five by decomposing another number.
4 + 3
K 1st
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
Make a TenMake a ten by decomposing another number.
8 + 6
K 1st
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
Make a TenMake a ten by decomposing another addend.
8 + 6
1st
8 + 2 = 1010 + 4 = 14
2nd
2 4
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
DoublesThe Doubles help with the Near Doubles.
4 + 4
K 1st
2016
©A
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orts
of
Mat
h
ADDITION STRATEGY
DoublesThe Doubles help with the Near Doubles.
25 + 25
1st 2nd
ADDITION STRATEGY
Near DoublesThe Doubles help with the Near Doubles.
2016
©A
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orts
of
Mat
h
6 + 7 = 6 + 6 + 1
K 1st
15 + 16 15 + 16 = 15 + 15 + 1
15 15 1
15 + 16
ADDITION STRATEGY
Near DoublesThe Doubles help with the Near Doubles.
2016
©A
ll S
orts
of
Mat
h
1st 2nd
2016
©A
ll S
orts
of
Mat
h
6 + 3
6 7 8 9
ADDITION STRATEGY
Count OnCount on from the larger number.
K 1st
2016
©A
ll S
orts
of
Mat
h
16 + 3
16 17 18 19
+1 +1 +1
ADDITION STRATEGY
Count OnCount on from the larger addend.
1st 2nd
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
Count AllStart from 1 and count every number.
4 + 51 2 3 45 6 7 8 9
K 1st
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
Count AllStart from 1 and count every number.
10 + 3
0 1 2 3 4 5 6 7 8 9 10 11 12 13
1st 2nd
2016
©A
ll S
orts
of
Mat
h
18 + 6
2 4
18 + 2 = 2020 + 4 = 24
1st 2nd
ADDITION STRATEGY
Make Friendly NumbersMake a friendly number by decomposing another addend.
2016
©A
ll S
orts
of
Mat
h
ADDITION STRATEGY
Place ValueDecompose and add by the place value.
21 + 14
20 1 10 420 + 10 = 30
1 + 4 = 530 + 5 = 35
1st 2nd
2016
©A
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orts
of
Mat
h
ADDITION STRATEGY
Add Up in ChunksKeeping one addend whole, add the second addend in friendly chunks.
23 + 12+10 +2
23 33 35
1st 2nd
2016
©A
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orts
of
Mat
h
2nd
17 + 19–116
+1+ 20
ADDITION STRATEGY
CompensationMake friendlier numbers by removing from one addend, then adding
the same amount to the other addend.
1st
SUBTRACTION STRATEGY
Add UpStart with the subtrahend, add up in friendly chunks to the minuend.
50 – 39 = 11
+1 +10
39 40 50
11
1st 2nd
2016
©A
ll S
orts
of
Mat
h
2016
©A
ll S
orts
of
Mat
h
SUBTRACTION STRATEGY
RemovalStart with the minuend, remove the subtrahend in friendly chunks.
22 – 8 = 14
–2
14 20 22
–8
–6
1st 2nd
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