search Mr. R.'s world of math and science free and accessible educational resources for all
 math poems math songs music videos math stories math lessons science poems fun poems

Doubles Plus 1

Doubles, doubles,
Doubles are fun,
Better yet,
Doubles plus
1!
Double a
4, You always get 8,
We all know that,
So
4 + 5,
Is just
1 more! You get 9?
Check to be sure!
4 + 4,
Plus
1,
Is
9,
Doubles plus
1,
Saves you time!!!
Know a double?
1 more!
Doubles plus
1,
That's the score...
Doubles, doubles,
Doubles are fun,
Better yet,
Doubles plus
1!

 Math Challenges If double 9 (9 + 9) is equal to 18, what is 9 + 10 equal to? One friend gives you 7 pieces of candy. A second friend gives you 7 more pieces of candy, and a third friend gives you 1 more piece of candy. How many pieces of candy do you have in total? (remember to add the doubles first!) What's 25 + 26 equal to? (think about doubles + 1 to solve quickly!)

 Watch Mr. R.'s Double Number Videos double number videos

 Listen to Mr. R.'s double number songs! double number songs