# Step 2

Difficulty 2

 1 In the Square: 0.5 squared, 0.2 squared, square root of 0.25 2 In the Square: 0.1 squared, 0.9 squared, square root of 0.36 3 Round to nearest ten: 482.898 117.02 1455.04 4 Round to one hundredth: 48.672 39.902 23.706 5 What's That Number? 6 What's That Number? 7 Order! Order! 3 dec places - Smallest number first 8 Order! Order! 3 dec places - Largest number first 9 Space Shuffle: Find the pattern 10 Space Shuffle: Find the pattern 11 Size-Wise: Smallest no. with 2 dec. places 12 Changing Numbers: 120.9 x 0.1, + 11.1, + 0.1, x 100 13 Pickin' the Pattern: 2, 5, 11, 23, * , * 14 Number Detectives: A number + its square = 30 (2 integers) 15 Number Detectives: a+b=15 Highest value of product? 16 Number Detectives: Sum of 4 consecutive odd nos = 40 17 Number Detectives: Sum of 4 consecutive odd nos = 120 18 Number Detectives: Sum of 4 consecutive even nos = 60 19 Expanded notation: 5731.88 20 Expanded notation: 65 424.791 21 Expanded notation: 35 248.916 22 Expanded notation: 348 267.159 23 Expanded notation: 123 789.456 24 Find the Power: Write numbers as powers of 10 25 Find the Power: Write numbers as powers of 10 26 Find the Power: Write numbers as powers of 10 27 Find the Power: Write numbers as powers of 10 28 Order! Order! 5 dec places - Smallest number first 29 Order! Order! 5 dec places - Largest number first 30 Number Detectives: Sum of 4 consecutive odd nos = 80 31 See You Round: 9.951 to whole number, 1dp, 2dp 32 See You Round: Round 15.992 to a whole no, 1, 2 dec places 33 See You Round: Round 6.9871 to 1, 2, 3 dec places 34 See You Round: Round 52.3694 to 1, 2, 3 dec places 35 Going Up: Ordering numbers with index notation 36 Going Down: Ordering numbers with index notation 37 Going Up: Ordering numbers with index notation 38 Significantly Speaking: 7.0821 to 1, 2, 3 significant figures 39 Significantly Speaking: 32.589 to 1, 2, 3 significant figures 40 Significantly Speaking: 2587 to 1, 2, 3 significant figures 41 By Jupiter!: Write 1.1094 x 10 metres as a distance in kilometres 42 When in Rome: Convert MCCLX 43 When in Rome: Convert CDLXXIII 44 Number Detectives: a = 729 45 Expand Numbers: Using indices 46 When in Rome: Convert CDXLV 47 Pickin' the Pattern: Kaprekar's sequence