A soda is 90 calories. How many calories are in 6 sodas

Question

Help me 

Answer 1

This can be answered using multiplication.

 

90 X 6 = 540.

 

A strategy to solving this problem is to ignore the "zero" on the 90 and just multiply 9 X 6 = 54.  Then add the zero back on for an answer of 540 calories.

 

This can be used with any number ending in zero/zeros.

 

For example:

 

A candy bar has 50 calories.  How many calories in 5 candy bars?

 

5 X 5 = 25.  Then add the zero for an answer of 250 calories.

 

Example:

 

A candy bar has 500 calories.  How many in 5 candy bars?

 

5 X 5 = 25.  Then add the two zeros and the answer is 2,500 calories.

Answer 2

Shannon, if one soda has 90 calories and you need to know how many are in 6, you need to multiply 90 times 6.  Your answer is 540.