Envisions Topic 8 Review

Envisions Topic 8 Review

Properties of Addition

Multiple Choice

What is the missing number?

57 + (34 + ____) = (57 + 34) + 105

• 57

• 34

• 105

• 42

Multiple Choice

What property does this show?

57 + (34 + ____) = (57 + 34) + 105

• Associative

• Commutative

• Identity

Multiple Select

SELECT ALL THAT APPLY. A young zebra at a zoo weighs 383 pounds. Its sister weighs 449 pounds. Which equations show a reasonable ESTIMATE for their total weight?

• 390 + 450 = 840

• 400 + 400 = 800

• 380 + 450 = 830

• 300 + 400 = 700

Multiple Choice

How would you write the equation 789 - 371 rounded to the nearest 10?

• 800 - 300

• 790 - 370

• 790 - 380

• 780 - 370

Multiple Choice

Now that you rounded the numbers, what is the estimated difference rounded to the nearest 10 of 789 - 371?

• 420

• 300

• 400

• 460

Multiple Choice

What pattern do you notice between the pink row and the pink column?

• The sums in the row are the same as the sums in the column.

• The sums in the row are double the sums in the column.

• The sums in the row are smaller than the sums in the column.

Multiple Choice

What property explains why that pattern is true?

• associative

• commutative

• identity

Multiple Select

SELECT ALL EQUATIONS THAT ARE TRUE.

• 0 + 451 = 0

• 130 + 210 = 210 + 130

• (127 + 80) + 250 = 127 + (80 + 250)

• 497 + 0 = 497

Multiple Choice

What is the inverse operation to subtraction?

• Addition

• Subtraction

• Multiplication

• Division

Multiple Choice

What is the inverse operation to multiplication?

• Addition

• Subtraction

• Multiplication

• Division

Multiple Choice

Brian was rounding to the nearest 100 to estimate the sum of 271 + 583. He wrote the answer was 850. Is he correct?

• He is correct

• He is wrong

Multiple Choice

What is the sum of 271 + 582 rounded to the nearest 100?

• 300

• 850

• 900

• 800

Multiple Choice

Evan solves 642 - 247 = 395. What equation can he use to CHECK his work?

• 247 + 395 = 642

• 642 - 247 = 395

• 642 - 395 = 247

Poll

Do you feel ready for the Topic 8 Math Tes?

• YES

• Kind of

• Maybe

• Not really

Poll

What game mode on Blooket is your favorite?

• Gold Chest

• Cafe

• Battle Royale

• Factory

• Tower Defense