Bluebonnet 13&14

Multiple Choice

Why do you think it is important to understand both addition and subtraction when solving math problems?

• Because they are opposite operations and help check each other

• Because subtraction is harder than addition

• Because addition is only used for counting objects

• Because subtraction is only used for taking away things

Multiple Choice

What number should be added to 260 to make the next hundred?

• 40

• 60

• 30

• 50

Fill in the Blank

What is 2 tens less than 130? Give the subtraction sentence.

-

=

Multiple Choice

After removing 18 rotten apples from a carton of 90 and selling 22, how many apples does the fruit seller have left to sell?

• 50

• 60

• 40

• 70

Multiple Choice

What is the answer to 244 - 125?

• 119

• 129

• 109

• 139

Fill in the Blank

What is the answer to 312 - 186?

Multiple Choice

Which of the following is a mental math strategy for solving 180 - 59?

• Break 59 into 50 and 9, subtract 50 from 180, then subtract 9.

• Add 59 to 180 and subtract 10.

• Multiply 59 by 2 and subtract from 180.

• Divide 180 by 59 and subtract 1.

Draw

Show me an example of how you can use addition to check your answer after using the vertical algorithm.

Multiple Choice

What is the main objective of this lesson?

• To use math drawings to represent subtraction and relate them to the algorithm

• To memorize subtraction facts only

• To practice multiplication tables

• To solve word problems only

Multiple Select

Which of the following are ways to represent subtraction problems, as discussed in the lesson?

• Using math drawings

• Using place value disks

• Using vertical form

• Using multiplication tables

Open Ended

Explain a pattern you noticed when solving subtraction problems using 10 to subtract. How does this pattern help you solve other subtraction problems?

Fill in the Blank

16 - 9 = ___

Fill in the Blank

77 - 22 = ___

Fill in the Blank

How many pennies does Brienne have if she has 23 fewer pennies than Alonzo, and Alonzo has 45 pennies?

Draw

How many pennies do Alonzo and Brienne have altogether? Show work

Multiple Choice

What is the value of 584 - 147?

• 437

• 427

• 457

• 347

Open Ended

Explain why it is important to use place value language when solving subtraction problems with three-digit numbers.

Multiple Select

Which of the following are correct steps to solve 637 - 253 using place value disks?

• Line up the digits in vertical form

• Draw place value disks for each digit

• Subtract each place value starting from the ones place

• Add the numbers together

Multiple Choice

What is the result when you subtract 396 from 725?

• 329

• 339

• 419

• 331