Simple Proportion

Dividing by 1, 10, 100 and 1,000 Multiplying by 1, 10, 100, 1000 Subtraction (Without “Borrowing”) Addition Without Carrying Factors and Multiples Prime Numbers Prime Factor Decomposition HCF & LCM (By Listing) HCF & LCM (Prime Factors) Rounding Numbers (Nearest 1, 10, 100 & DP) Rounding to Significant Figures Estimating Calculations (Simple) Estimating Calculations (Harder) Multiplying Big Numbers & Decimals Grid Method for Long Multiplication Ratio (Sharing Questions) Fractions of an Amount Percentages of Amounts Adding & Subtracting Fractions BIDMAS Revision Simple Proportion Lattice Method for Long Multiplication Subtracting Fractions Trial and Improvement