Quiz 3 | 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.

20 − 8.45

Your answer

Evaluate. Type the exact answer.

−13 − (−4)

Your answer

Evaluate. Type the exact answer.

−32 − (−18) + 7

Your answer

What is the additive inverse of this number?

−2 35

Additive inverse

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

Evaluate. Type the exact answer.

−23 + (−14) + 23 + 6 + 14

Your answer

Evaluate. Type the exact answer.

−6.35 + (−2.8)

Your answer

A worker starts at ground level and digs down 48 feet, then another 27 feet, then another 19 feet. Below ground is negative. Write an addition/subtraction expression showing each change, then give the signed final position and the depth of the hole.

Numerical expression (show all three amounts)

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

Signed final position / balance

Depth (positive feet)

Evaluate. Type the exact answer.

12.6 + 0.84

Your answer

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.

6.28 + (−9.83)

Estimate (nearest-whole-number addends)

Exact sum

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.

−5 + (−8)

First stop

Final stop (sum)

Evaluate. Type the exact answer.

8 16 − 4 34

Your answer

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

Evaluate. Type the exact answer.

1112 + (−58)

Your answer

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

Evaluate. Type the exact answer.

−5 38 + (−1 14)

Your answer

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

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

−56 + ____ > 0

One possible addend

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

Evaluate. Type the exact answer.

24 + 39

Your answer

Evaluate. Type the exact answer.

1115 − 29

Your answer

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

Evaluate. Type the exact answer.

34 + 59

Your answer

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

Evaluate. Type the exact answer.

48 + (−73)

Your answer

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

1712 + (−1712)

Sign of the sum

Type one word: positive, zero, or negative.

Evaluate. Type the exact answer.

1 58 + 2 712

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.