If you are strong in the concept of addition you can memorize the specific addition facts quite easily. Learning about Adding Doubles makes it easy for you to perform calculations in a speedy manner. To get a Double of a Number we will simply add the number to itself.
This Activity of Doubles Addition will enhance the math skills of Addition. Use our Adding Doubles Worksheets to have ample practice and learn the concept as well. Learn How Adding Doubles is the Same as Multiplying by Two in the further modules. Solve the Examples provided here and work on the double addends. Solving the Doubles Addition Problems can help your kid build fluency in addition to creating equivalent or known sums.
Also, Check:
Adding Doubles Table Chart for Numbers 1-25
| 1+1 = 2 | 6+6 = 12 | 11 + 11 = 22 | 16 + 16 = 32 | 21 + 21 = 42 |
| 2+2 = 4 | 7 +7 = 14 | 12 + 12 = 24 | 17 + 17 = 34 | 22 + 22 = 44 |
| 3+3 =6 | 8 + 8 = 16 | 13 + 13 = 26 | 18 + 18 = 36 | 23 + 23 = 46 |
| 4+4 = 8 | 9 + 9 = 18 | 14 + 14 = 28 | 19 + 19 = 38 | 24 + 24 = 48 |
| 5+5 = 10 | 10 +10 = 20 | 15 + 15 = 30 | 20 + 20 = 40 | 25 + 25 = 50 |
Take a printout of the Doubles Addition of Numbers up to 25 for free and use them to solve addition problems. Stick the Table on your walls and remember the addition facts on doubles.
How Adding Doubles is same as Multiplying by Two?
When we multiply a number by 2 we are just doubling the number. These two actions are similar and we can prove the same by having a glance at the below modules.
Double the Numbers and Multiply by 2 from 0-10
| 0+0 = 0 or 0*2 =0 1+1 = 2 or 1*2 = 2 2+2 = 4 or 2*2 = 4 3+3 = 6 or 3*2 = 6 4+4 = 8 or 4*2 = 8 5+5 = 10 or 5*2 = 10 6+6 = 12 or 6*2 = 12 7+7 = 14 or 7 *2 = 14 8+8 = 16 or 8 *2 = 16 9+9 = 18 or 9*2 = 18 10+10= 20 or 10*2 = 20 |
Double the Numbers and Multiply by 2 from 11-20
| 11+11 = 22 or 11*2 = 22 12+12 = 24 or 12*2 = 24 13+13 = 26 or 13*2 = 6 14+14 = 28 or14*2 = 8 15+15 = 30 or 15*2 = 30 16+16 = 32 or 16*2 = 32 17+17 = 34 or 17 *2 = 34 18+18 = 36 or 18 *2 = 36 19+19 = 38 or 19*2 = 38 20+20= 40 or 20*2 = 40 |
Double the Numbers and Multiply by 2 from 21-25
| 21+21 = 42 or 21*2 = 42 22+22 = 44 or 22*2= 44 23+23 = 46 or 23*2 = 46 24+24 = 48 or 24*2 = 48 25+25 = 50 or 25*2 = 50 |
Enhance your math skills and learn to add problems orally and score better grades in mental math. You can use Adding Doubles Plus 1 or Minus 1 concept if you are to find the sum of consecutive numbers.
Examples on Addition of Doubles
Example 1.
Mary has 4 balls and James has double the balls mary has. Find How many Marbles does James have?
Solution:
No. of balls Mary has = 4
James has double the balls mary has i.e. 4+4 or 4*2 = 8
Therefore, James has 8 Marbles in total.
Example 2.
Add 3+4 using doubles?
Solution:
The Number 4 is more than 3 and we can write 4 as 3+1
As we know the double of 3 is 6.
Therefore, the sum of 3+4 would be one more than the double i.e. 6+1=7
Thus, the sum of 3+4 is 7
Example 3.
Find the Sum of 6+5 using doubles?
Solution:
The Number 5 is one less than 6 and we can write 5 as 6-1
As we know the double of 6 is 12.
Thus, the sum of 6+5 would be one less than the double i.e. 12-1
Thus, the sum of 6+5 is 11
Example 4.
What is 4+4 =?
Solution:
We know 4+4 or 4*2= 8
Thus, the Double of 4 is 8