Doubles Play
Foundational
Mastering Easy Doubles
Think smart
Use the Counting On strategy with the hands and rhymes to help
you find the missing doubles.
1
2
2+ =
3+ =
3+
2+
Counting on is fast to do.
Start your counting with a 2!
3
Start with 3 and count the rest,
faster strategies are best!
4
4+ =
4+
The secret is to start with 4,
then count on to add some more!
Copyright © 2010 Greg Tang Math, LLC
5+ =
5+
Counting on will do the trick.
Start with 5 and you'll be quick!
www.GregTangMath.com
Doubles Play
Foundational
Mastering Easy Doubles
Think smart
Use the Counting On strategy with the hands and rhymes to help
you find the missing doubles.
1
2
6+ =
7+ =
6+
7+
7 is the place to start.
Counting on is really smart!
If you want the right amount,
start with 6 before you count!
3
4
8+ =
8+
Hurry now and don't be late.
Start your counting with an 8!
Copyright © 2010 Greg Tang Math, LLC
9+ =
9+
Here's a little trick of mine:
start your counting with a 9!
www.GregTangMath.com
Doubles Play
Intermediate
Doubles Plus 1 Addition Strategy
Think smart
These problems are so quickly done. Simply double then add 1!
1
2
2+3 =
Smart
double
4+5 =
Smart
double
Add
the rest
It's easy adding 2 and 2.
Add 1 more and you are through!
3
Add
the rest
Start by adding 4 and 4.
Don't forget to add 1 more!
4
5+6 =
Smart
double
Add
the rest
5 and 5 is fast and fun.
Simply add another 1!
Copyright © 2010 Greg Tang Math, LLC
3+4 =
Smart
double
Add
the rest
A strategy that's quickly done:
double 3 and then add 1!
www.GregTangMath.com
Doubles Play
Intermediate
Doubles Plus 1 Addition Strategy
Think smart
These problems are so quickly done. Simply double then add 1!
1
2
9 + 10 =
Smart
double
6+7 =
Smart
double
Add
the rest
It's easy adding 6 and 6.
Just add 1 more to the mix!
Here's a little trick of mine:
add 1 after doubling 9!
3
Add
the rest
4
7+8 =
Smart
double
Add
the rest
7 doubled is a start.
Add 1 more if you are smart!
Copyright © 2010 Greg Tang Math, LLC
8+9 =
Smart
double
Add
the rest
Begin by adding 8 and 8.
Add 1 more - no need to wait!
www.GregTangMath.com
Doubles Play
Advanced
Doubles Plus 2 Addition Strategy
Think smart
These problems are so fast to do. Simply double then add 2!
1
2
4+6 =
Smart
double
2+4 =
Smart
double
Add
the rest
3
Add
the rest
4
3+5 =
Smart
double
5+7 =
Smart
double
Add
the rest
5
Add
the rest
6
5+7 =
Smart
double
Add
the rest
Copyright © 2010 Greg Tang Math, LLC
4+6 =
Smart
double
Add
the rest
www.GregTangMath.com
Doubles Play
Advanced
Doubles Plus 2 Addition Strategy
Think smart
These problems are so fast to do. Simply double then add 2!
1
2
7+9 =
Smart
double
6+8 =
Smart
double
Add
the rest
3
Add
the rest
4
9 + 11 =
Smart
double
8 + 10 =
Smart
double
Add
the rest
5
Add
the rest
6
6+8 =
Smart
double
Add
the rest
Copyright © 2010 Greg Tang Math, LLC
7+9 =
Smart
double
Add
the rest
www.GregTangMath.com
Doubles Play
Advanced
Doubles Minus 1 Addition Strategy
Think smart
These problems are so quickly done. Double then subtract a 1!
1
2
5+4 =
8+7 =
Smart
double
Smart
double
Subtract
the rest
3
Subtract
the rest
4
6+5 =
4+3 =
Smart
double
Smart
double
Subtract
the rest
5
Subtract
the rest
6
7+6 =
9+8 =
Smart
double
Subtract
the rest
Copyright © 2010 Greg Tang Math, LLC
Smart
double
Subtract
the rest
www.GregTangMath.com
Doubles Play
Advanced
Doubles Minus 2 Addition Strategy
Think smart
These problems are so fast to do. Double then subtract a 2!
1
2
4+2 =
9+7 =
Smart
double
Smart
double
Subtract
the rest
3
Subtract
the rest
4
6+4 =
7+5 =
Smart
double
Smart
double
Subtract
the rest
5
Subtract
the rest
6
5+3 =
8+6 =
Smart
double
Subtract
the rest
Copyright © 2010 Greg Tang Math, LLC
Smart
double
Subtract
the rest
www.GregTangMath.com