Quiz 2 | 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.

−22 − (−35)

Your answer

A diver starts at the surface (0 m), descends 4.5 m, goes 2.75 m deeper, then rises 1.6 m. Below the surface is negative. Write an addition/subtraction expression showing all three changes. Give the signed final position and the distance below the surface.

Numerical expression (show all three amounts)

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

Signed final position / balance

Distance below the surface (positive meters)

Evaluate. Type the exact answer.

14.2 − 5.87

Your answer

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

−7.4 + ____ < 0

One possible addend

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

Evaluate. Type the exact answer.

4.72 + (−8.9)

Your answer

Evaluate. Type the exact answer.

710 + 23

Your answer

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

Evaluate. Type the exact answer.

58 − 13

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.

−4 78 + 2 13

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.

−62 + 19

Your answer

Evaluate. Type the exact answer.

18 − 27 + (−6)

Your answer

Evaluate. Type the exact answer.

7 + (−28) + (−7) + 16 + 28

Your answer

Evaluate. Type the exact answer.

−710 + 25

Your answer

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

Evaluate. Type the exact answer.

−38 + (−15)

Your answer

What is the additive inverse of this number?

Additive inverse

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

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

2 15 + (−6 310)

Sign of the sum

Type one word: positive, zero, or negative.

Evaluate. Type the exact answer.

6 25 − 3 710

Your answer

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

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

−9 + 6

First stop

Final stop (sum)

Evaluate. Type the exact answer.

2 23 + (−4 16)

Your answer

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

Evaluate. Type the exact answer.

8.09 + 6.7

Your answer

Evaluate. Type the exact answer.

3 25 + 2 310

Your answer

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

0 of 20 questions fully answered

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

← Back to all six quizzes

Submission is saved in this browser’s site data, not in a student account. Another browser/device or cleared site data permits a separate attempt.