Math Mf2 Chapter 1 (directed Numbers)

PMR Question Module Chapter 1 Form 2 2009

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Mathematics : Directed Numbers Answer all questions.

PMR questions.

⎛ 1 1⎞ 1. Calculate the value of −0.8 − ⎜ − + ⎟ ⎝ 2 5⎠

⎛ 7 1⎞ 2. Calculate the value of −1.5 − ⎜ − + ⎟ ⎝ 10 2 ⎠ and express the answer as a decimal.

and express the answer as a decimal.

⎛1 3. Calculate the value of −0.6 − ⎜ − ⎝2

2. Calculate the value of ⎛ 1⎞ 4.26 × 0.8 − ⎜ −1 ⎟ and express the ⎝ 2⎠

3⎞ ⎟ 4⎠

and express the answer as a decimal.

answer correct to two decimal places.

2 5 and express the answer correct to two decimal places.

4. Calculate the value of 32.4 − (−6.75) ÷ 3. Calculate the value of 14 − (−0.6) ÷

2 . 3

4. Calculate the value of −24 ÷ 8 − 14 .

5. Calculate the value of ⎛ 4⎞ 6.75 × 3.5 − ⎜ −1 ⎟ and express the ⎝ 5⎠ answer correct to two decimal places.

Module questions. 1. Calculate the value of 1 0.52 − 2 ÷ + (−0.46) and express the 2 answer as a decimal.

6. Calculate the value of (a) 3 − (−1.8) ÷ 3

1 3

(b) −19 × (−2) + 14