Transcript Wilf: to count in 2`s

Wilf: to begin to remember
number bonds for 10
I can tell you 2 numbers that total 10
If you can remember number bonds for 10, it makes
+ and - subtracting easier
Can you add
more than 2
numbers ?
Find the total
4+2+6=
8+2+2=
3+1+9=
Wilf: to begin to add more
than 2 numbers, looking for
number bonds to 10 first
I can find number bonds to 10 before I add
the other number.
If you can remember number bonds for 10, it
makes + and - subtracting easier
Find the total
4+2+6=
8+2+2=
3 + 7 + 5=
Wilf: to begin to add more
than 2 numbers, looking for
number bonds to 10 first
I can find number bonds to 10 before I add
the other number.
If you can remember number bonds for 10, it
makes + and - subtracting easier
Number bonds for 10
5 + 5
4 + 6
3+ 7
2 + 8
1 + 9
5
6
7
8
9
+
+
+
+
+
5
4
3
2
1
Can you do it?
4+2+6=
8+2+2=
3+1+9=
Wilf: to begin to add more
than 2 numbers, looking for
number bonds to 10 first
I can find number bonds to 10
before I add the other number.