You need to find out what your calculator displays

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Unformatted text preview: plays. Remember, you must always write the ' × 10 ' part when you are asked to give an answer in standard form. Exercises 1. Calculate: (a) (b) 8 × 10 3 (c) 4.2 × 10 2 (d) 3 ÷ 1000 (e) 6 ÷ 10 2 (f) 3.2 ÷ 10 3 (g) 2. 6.21 × 1000 6 × 10 − 3 (h) 9.2 × 10 − 1 (i) 3.6 × 10 − 2 Write each of the following numbers in standard form: (a) (b) 8000 (c) 9 000 000 (d) 62 000 (e) 840 000 (f) 12 000 000 000 (g) 3. 200 61 800 000 000 (h) 3 240 000 Convert each of the following numbers from standard form to the normal decimal notation: (a) (b) 3.6 × 10 4 (c) 8.2 × 10 3 (d) 3.1 × 10 2 (e) 1.6 × 10 4 (f) 1.72 × 10 5 (g) 4. 3 × 10 4 6.83 × 10 4 (h) 1.25 × 10 6 (i) 9.17 × 10 3 Write each of the following numbers in standard form: (a) 0.0004 (b) 0.008 (c) 0.142 (d) 0.0032 (e) 0.00199 (f) 0.000000062 (g) 0.0000097 (h) 0.00000000000021 52 MEP Y9 Practice Book A 5. Convert the following numbers from standard form to the normal decimal format: (a) (b) 7 × 10 − 1 (c) 1.8 × 10 − 3 (d) 4 × 10 − 3 (e) 6.2 × 10 − 3 (f) 9.81 × 10 − 4 (g) 6. 6 × 10 − 2 6.67 × 10 − 1 (h) 3.86 × 10 − 5 (i) 9.27 × 10 − 7 Without using a calculator, determine: (a) (b) (2 × 10 ) × (3 × 10 ) (c) (6 × 10 ) × (8 × 10 ) (d) (3 × 10 ) × (7 × 10 ) (e) 7. (4 × 10 ) × (2 × 10 ) (6.1 × 10 ) × (2 × 10 ) (f) (3.2 × 10 ) × (4 × 10 ) 4 5 −9 4 −5 6 6 5 −8 −4 −5 −9 Without using a calculator, determine: (a) (b) (8 × 10 ) ÷ (2 × 10 ) (c) (6 × 10 ) ÷ (2 × 10 ) (d) (6 × 10 ) ÷ (3 × 10 ) (e) 8. (9 × 10 ) ÷ (3 × 10 ) (4.8 × 10 ) ÷ (1.2 × 10 ) (f) (3.6 × 10 ) ÷ (9 × 10 ) 7 4 −2 −3 12 3 −2 5 −6 4 8 3 Without a calculator, determine the following, giving your answers in both normal and standard form:: (a) (b) (6 × 10 ) + (9 × 10 ) (c) 6 × 10 5 − 1 × 10 4 (d) 8 × 10 − 2 + 9 × 10 − 3 (e) 9. (6 × 10 ) + (3 × 10 ) 6 × 10 − 4 + 8 × 10 − 3 (f) 6 × 10 − 4 − 3 × 10 − 5 5 6 2 3 Use a calculator to determine: (a) (3.4...
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