Quiz 6 | Math 10/2 quiz

20 questions · Typed answersNot submitted

Show your work vertically on paper, then type your answers. All questions are below. Some questions have more than one answer box; complete every box.

Use a minus sign for negatives. Enter fractions as 3/4 and mixed numbers as 2 1/3. A negative mixed number such as -2 1/3 means negative two and one third. Equivalent exact fractions and decimals are accepted. Do not round unless a question asks for an estimate.

One final submission. Drafts save in this browser. After grading, your answers lock and corrections appear. Each question is worth 1 point; all of its boxes must be correct. Grading checks typed responses, not paper working.

Evaluate. Type the exact answer.

−76 + 44

Your answer

Type ANY number that makes the sum greater than 0. Many answers work; yours must make the statement true.

−2.65 + ____ > 0

One possible addend

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

63 + 29

Your answer

Evaluate. Type the exact answer.

712 − 310

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

First estimate by rounding EACH addend to the nearest whole number and adding those rounded numbers. Then find the exact sum. Do not round the exact answer.

9 45 + (−3 16)

Estimate (nearest-whole-number addends)

Exact sum

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

5 512 + 2 38

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

−36 − (−20)

Your answer

Evaluate. Type the exact answer.

6.025 + (−3.48)

Your answer

Evaluate. Type the exact answer.

76 + (−34)

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

26 + (−39) + (−26) + 39 + 11

Your answer

Owen owes $32, borrows $15 more, then repays $19. Treat debt as negative and repayment as positive. Write an addition/subtraction expression showing all three amounts. Give the signed remaining balance and the amount needed to bring the debt to $0.

Numerical expression (show all three amounts)

Show all three amounts. Use +, − and parentheses; do not type units.

Signed final position / balance

Amount still needed to repay (positive dollars)

Evaluate. Type the exact answer.

4 15 − 1 78

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

78 + 56

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Evaluate. Type the exact answer.

−7 23 + (−3 56)

Your answer

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

What is the additive inverse of this number?

−0.375

Additive inverse

Fraction: 3/4. Mixed number: 2 1/3. Negative mixed number: -2 1/3.

Model this sum on the vertical number line. Start at 0. Type the coordinate of the first stop after the first addend, then the final stop after the second addend.

−6 + 9

First stop

Final stop (sum)

Evaluate. Type the exact answer.

−25 + 17 − (−12) − 9

Your answer

Evaluate. Type the exact answer.

10.005 − 4.87

Your answer

Evaluate. Type the exact answer.

3.76 + 18.4

Your answer

Without finding the exact sum, predict its sign. Type positive, zero, or negative.

138 + (−54)

Sign of the sum

Type one word: positive, zero, or negative.

0 of 20 questions fully answered

Check every answer. You will confirm before your one final submission.

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