Subtracting on a Number Line by Counting Up

What is the initial number of baseballs mentioned?

• 300

• 546

• 278

• 200

Tags

CCSS.2.NBT.B.7

What is the purpose of using a number line in this subtraction method?

• To count the number of leaps needed

• To visually represent the subtraction process

• To find the total number of baseballs

• To organize numbers in chronological order

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

What method is used to find the difference between two numbers?

• Addition

• Division

• Multiplication

• Subtraction by counting up

Tags

CCSS.1.OA.C.6

What is the first leap made when counting up from 278?

• 200

• 46

• 20

• 2

Tags

CCSS.4.NBT.B.4

How is the number 280 reached in the counting process?

• Adding 46 to 278

• Adding 2 to 278

• Adding 20 to 278

• Adding 200 to 278

Tags

CCSS.2.NBT.B.8

What landmark number does making a leap of 20 reach?

• 278

• 280

• 500

• 300

Tags

CCSS.2.NBT.B.8

What is the significance of the number 300 in this process?

• It's the starting number

• It's a landmark number reached by a leap

• It's the total number of usable baseballs

• It's the final number on the number line

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

What is the final leap made to reach 546?

• 46

• 20

• 200

• 2

Tags

CCSS.2.NBT.B.8

How many baseballs are left after subtracting the unusable ones?

• 300

• 546

• 278

• 268

Tags

CCSS.2.NBT.B.7

What does the final calculation of leaps represent?

• The total number of usable baseballs left

• The number of leaps made on the number line

• The total number of baseballs initially

• The number of unusable baseballs

Tags

CCSS.1.OA.A.1