Subtracting Measurements of Mass

The video tutorial explains how to solve a problem involving the subtraction of weights. Kayla has 84 grams of coins and gives 22 grams to her brother, Zach. The tutorial demonstrates two methods to find the remaining weight: using column subtraction and breaking down numbers. Both methods result in 62 grams remaining. The lesson concludes with a summary of the subtraction process.

Kayla starts with 84 grams of coins and gives away 22 grams. How much weight does she have left?

• 66 grams

• 62 grams

• 60 grams

• 64 grams

In the column subtraction method, what is the result when you subtract 2 from 4 in the ones place?

• 1

• 4

• 2

• 3

When using column subtraction, what is the result of subtracting 2 from 8 in the tens place?

• 5

• 6

• 8

• 7

In the alternative subtraction method, what is the result of subtracting 20 from 80?

• 70

• 60

• 50

• 80

Using the alternative method, what is the final weight of coins Kayla has after subtraction?

• 60 grams

• 61 grams

• 62 grams

• 63 grams