Understanding Ribbon Length and Subtraction

The video tutorial explains how Pilar, who has 85 inches of ribbon, gives 19 inches to her friend Nico. The task is to determine how much ribbon Pilar has left. The instructor uses a tape diagram to visualize the problem and sets up an equation to solve it. The solution involves breaking down the subtraction of 19 from 85 into simpler steps, ultimately finding that Pilar has 66 inches of ribbon remaining.

How much ribbon does Pilar start with?

• 19 inches

• 66 inches

• 85 inches

• 100 inches

Tags

CCSS.2.MD.A.3

How much ribbon does Pilar give to Nico?

• 19 inches

• 66 inches

• 85 inches

• 50 inches

Tags

CCSS.4.MD.B.4

What is the purpose of using a tape diagram in this problem?

• To color the ribbon

• To cut the ribbon

• To measure the ribbon

• To visualize the length of the ribbon

Tags

CCSS.4.MD.A.2

What equation can represent the problem of finding the remaining ribbon?

• x - 19 = 85

• 19 + x = 85

• 85 - x = 19

• 85 + 19 = x

Tags

CCSS.5.NBT.B.7

How can 85 be broken down to simplify the subtraction?

• 80 + 5

• 70 + 15

• 60 + 25

• 90 - 5

Tags

CCSS.1.NBT.C.5

What is the result of subtracting 10 from 80?

• 90

• 50

• 60

• 70

What is the first step in solving 85 - 19?

• Divide 80 by 10

• Multiply 10 by 80

• Add 10 to 80

• Subtract 10 from 80

Tags

CCSS.2.NBT.B.5

Why is it necessary to break down 9 into 4 and 5 during subtraction?

• To multiply the numbers

• To make subtraction easier

• To add more numbers

• To divide the numbers

Tags

CCSS.4.MD.A.2

What is the final amount of ribbon Pilar has left?

• 85 inches

• 50 inches

• 19 inches

• 66 inches

Tags

CCSS.1.NBT.C.5

What is the result of 70 minus 4?

• 68

• 66

• 64

• 60

Tags

CCSS.1.NBT.C.5