Unit 1.1-1.4

Comparing & Ordering

100

Which is larger, -0.75 or -0.7?

-0.7

200

True or False: 

-\frac(5)(2)=-2.5

True

300

Find any rational number that sits between 0.4 and 0.7.

Any decimal from 0.41 to 0.69.

400

Find a fraction that sits between 

\frac(1)(3) and \frac(2)(3).

Any valid middle fraction like 

\frac(1)(2) or \frac(3)(6).

Squares & Roots

100

Estimate 

 \7.1^2   to the nearest whole number.

50

200

Estimate  \sqrt(50)  to the nearest tenth without a calculator.

7.1

300

Order least to greatest:  \sqrt(8), 2.3^2, 4.5. 

 \sqrt(8), 4.5, 2.3^2. 

400

Find the exact decimal value of  4.5^2 using technology.

20.25

Adding Rationals

100

Solve -7+12.

5

200

Solve and give the answer in lowest terms: \frac(3)(4)+\frac(5)(8) 

 \frac(11)(8)  or

1\frac(3)(8)

300

The temperature was -6.5°C and rose 8.75°C. What is the new temperature?

2.25°C

400

Solve: -3.5 + (-2.75) + 6.25.

0.

Subtracting Rationals

100

Solve: -4.5 - 2.75.

-7.25.

200

Solve and give answer in lowest terms: 5 / 6 - 1 / 4

\frac(7)(12).

300

A hiker at 125.5 m descends 178.75 m. What is the hiker's new elevation?

-53.25 m.

400

Solve and give answer in lowest terms:  2\frac(1)(2)-4\frac(3)(4) 

 -\frac(9)(4) or

-2\frac(1)(4)

Wildcard

100

Solve: 6.2 - (-3.8).

10.

200

Solve and give answer in lowest terms:  -\frac(3)(5)-\frac(7)(10) .

 -\frac(13)(10) or

-1\frac(3)(10).

300

A freezer at -18.5°C rises 7.25°C. What is the new temperature?

-11.25°C.

400

A bank account balance is -$24.50. Deposits of $37.25 and $12.75 are made. What is the new balance?

$25.50.