9 x 14 9 x 12 Calculate the value of the following: 1 4 × 12 =

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Presentation transcript:

9 x 14 9 x 12 Calculate the value of the following: 1 4 × 12 = Starter: Answer the questions below in your books Calculate the value of the following: 1 4 × 12 = (9 - 3) × 8 = (36 ÷ 3) × (26 – 15) = 8 × (48 ÷ 6) = 20 × 19 = 25 × 112 = 9 x 14 9 x 12

9 x 14 9 x 12 Mark the starter: 1 4 × 12 = 48 (9 - 3) × 8 = 48 Starter: Answer the questions below in your books Mark the starter: 1 4 × 12 = 48 (9 - 3) × 8 = 48 (36 ÷ 3) × (26 – 15) = 132 8 × (48 ÷ 6) = 64 20 × 19 = 380 25 × 112 = 2800 9 x 14 9 x 12

144 Finding the square root of a number Split prime factors into equal amounts 144 Find the prime factors of a number Split the prime factors into two equal amounts. Check the square roots using a calculator.

Split the following into prime factors Split the following into prime factors. Divide the prime factors into two equal columns. Multiply the numbers in one of the columns to find the square root of the original number. Check it on your calculator. 225 1024 729 5184 3136

The answers are next…

225 = 25 × 9 = 5 × 5 × 3 × 3 so these split into two piles of 5 × 3 = 15 3136 = 16 × 196 = 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 so these split into two equal piles of 2 × 2 × 2 × 7 =56