because when you multiply by 2 you are just doubling the number being multiplied by two.
example: 5x2=10 5+5=10
Doubling is the same as multiplying by two. The two actions are the same.
Adding doubles can help you multiply by 2 through the property of commutativity in multiplication. By adding two equal numbers together (doubles), you are essentially multiplying one of the numbers by 2. For example, 5 + 5 = 10, which is the same as 5 x 2 = 10. This strategy can simplify multiplication problems and help build a deeper understanding of the relationship between addition and multiplication.
The circumference also doubles.
-4
Multiplying by two is the same thing as adding the number to itsself again. 2 (4) = 4 + 4
Doubling is the same as multiplying by two. The two actions are the same.
Adding doubles can help you multiply by 2 through the property of commutativity in multiplication. By adding two equal numbers together (doubles), you are essentially multiplying one of the numbers by 2. For example, 5 + 5 = 10, which is the same as 5 x 2 = 10. This strategy can simplify multiplication problems and help build a deeper understanding of the relationship between addition and multiplication.
Anything times two equals the thing added to itself. 33 x 2 = 33 + 33
you multiply 5 by 2 which is ten or you think of adding 5 two's or adding 2 fives.
The circumference also doubles.
-4
Multiplying by two is the same thing as adding the number to itsself again. 2 (4) = 4 + 4
Because, if you want to multiply say 2*4=8 that is the same as doing 4+4=8 or 4 two times. It's the same with all numbers!
It will help when you are adding and subtracting fractions.
-100
Multiply it by 2 as for example 3+3 = 6 which is the same as 2*3 = 6
15.5 times 12 is equal to 186. To calculate this, you simply multiply 15.5 by 12. First, you can multiply 15 by 12, which equals 180. Then, you multiply 0.5 by 12, which equals 6. Adding these two results together gives you 186.