Use DPP item U to practice the addition facts in Group D.
6
7
8
9
12
13
14
15
16
17
19
20
Possible response: If I know
the double, the near double is
one or two more or less. For
example: to solve 6 + 7, I
know 6 + 6 = 12. So 6 + 7
is one more or 13.
U. Using Doubles
3 + 3 =
3 + 4 =
4 + 4 =
4 + 5 =
6 + 6 =
6 + 7 =
7 + 7 =
7 + 8 =
8 + 8 =
8 + 9 =
10 + 9 =
10 + 10 =
Tell your neighbor a strategy for solving facts that are near
doubles.