1. M May 3 x 10 5 = 3 x 100 000= 300 000 4.36 x 10 3 = 4.36 x 1 000= 4360

2. M May 10 000 000 1 000 000 100 000 10 000 1000 100 10 1 0.1 0.01 0.001 0.000 1 0.000 01 = 10 7 = 10 6 = 10 5 = 10 4 = 10 3 = 10 2 = 10 1 = 10 0 = 10 -1 = 10 -2 = 10 -3 = 10 -4 = 10 -5 or x 10 x 10 x 10 x 10 or x 10 x 10 x 10 or x 10 x 10 or x 10 or x 1 or ÷ 10 or ÷ 10 ÷ 10 or ÷ 10 ÷ 10 ÷ 10 or ÷ 10 ÷ 10 ÷ 10 ÷ 10 10 x 10 x 10 x 10 x 10 x 10 x 10

3. M May 250 000=2.5 x 10 25 250 2500 25 000 250 000 12345 = 2.5 x 10 5 62 370=6.237 x 10 4 3 162 =3.162 x 10 3 0.26 =2.6 x 10 -1

4. M May Give the following in Standard form: 5692 817539 270 9.30.3950.003 68 Rewrite the following as ordinary numbers 7 x 10 4 4.39 x 10 6 7.21 x 10 0 3.2 x 10 -2 1.82 x 10 -5 5.09 x 10 -1 5. 69 x 10 2 2. 817 x 10 3 5. 3927 x 10 5 9. 3 x 10 0 3. 95 x 10 -1 3. 68 x 10 -3 70 0004 390 0007.21 0.0320.000 01820.509

5. M May Calculating with numbers in standard form Distance of 3.6 x 10 7 kilometres at speed of 1.8 x 10 3 km/s D S T T = 3.6 x 10 7 1.8 x 10 3 = 3.6 1.8 10 7 10 3 x =210 4 seconds x 7 - 3 Speed of 3.27 x 10 2 m/sec for 1 hour D =3.27 x 10 2 x 60 x 60 =3.27 x 6 x 6 x 10 2 x 10 x 10 = 3.27 x 6 1952 x 6 117.12 117.12 x 10 4 =1.1712 x 10 6 4 + 2