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Approximation Objectives for the lesson : Rounding to 10 / 100 / 1000 Using decimal places and significant figures.

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Presentation on theme: "Approximation Objectives for the lesson : Rounding to 10 / 100 / 1000 Using decimal places and significant figures."— Presentation transcript:

1 Approximation Objectives for the lesson : Rounding to 10 / 100 / 1000 Using decimal places and significant figures

2 Rounding to 10 / 100 / 1000 Round each of these numbers to the nearest 10 / 100 /

3 Rounding to 10 / 100 / 1000 Round each of these numbers to the nearest 10 / 100 /

4 Rounding to 10 / 100 / 1000 Round each of these numbers to the nearest 10 / 100 /

5 Rounding to 10 / 100 / 1000 Round each of these numbers to the nearest 10 / 100 /

6 Rounding to 10 / 100 / 1000 Round each of these numbers to the nearest 10 / 100 /

7 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) b.) c.) d.) e.) 4.556

8 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) c.) d.) e.) 4.556

9 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) d.) e.) 4.556

10 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) e.) 4.556

11 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) 4.556

12 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56

13 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215 b.) 587 c.) d.) e.)

14 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215a.) 3000b.) 3200 b.) 587 c.) d.) e.)

15 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215a.) 3000b.) 3200 b.) 587a.) 600b.) 590 c.) d.) e.)

16 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215a.) 3000b.) 3200 b.) 587a.) 600b.) 590 c.) 1.034a.) 1b.) 1.03 d.) e.)

17 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215a.) 3000b.) 3200 b.) 587a.) 600b.) 590 c.) 1.034a.) 1b.) 1.03 d.) a.) 0.006b.) e.)

18 Decimal places and significant figures Decimal places Write the following numbers to 1 d.p and 2 d.p: a.) a.) 23.4b.) b.) 2.871a.) 2.9b.) 2.87 c.) 9.456a.) 9.5b.) 9.46 d.) 0.678a.) 0.7b.) 0.68 e.) a.) 4.6b.) 4.56 Significant figures Write the following numbers to 1 s.f and 2 s.f: a.) 3215a.) 3000b.) 3200 b.) 587a.) 600b.) 590 c.) 1.034a.) 1b.) 1.03 d.) a.) 0.006b.) e.) 29351a.) 30000b.) 29000

19 To finish Suggest pairs of numbers which are the same when rounded to : 2 dps and 2 sfs 1dp and 8 sfs 3dps and 5sfs 4dps and 2 sfs


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