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Keys Skills Multiplication using lattice method TUTOR VERSION. Outcomes from this session At the end of this session you should be able to. Understand how to multiply decimals using the lattice method Complete practical examples to verify learning. (Step 1) Multiply 301 x 1.2.

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## Keys Skills Multiplication using lattice method TUTOR VERSION

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**Outcomes from this sessionAt the end of this session you**should be able to Understand how to multiply decimals using the lattice method Complete practical examples to verify learning**(Step 1) Multiply 301 x 1.2**3 0 1 1 2 Fill the numbers around the outside of the box**(Step 2 ) Multiply 301 x 1.2**3 0 1 0 3 0 0 0 1 1 2 0 6 0 0 0 2 Multiply the outside numbers and enter in the boxes**(Step 3 ) Multiply 301 x 1.2**3 0 1 0 3 0 0 0 1 1 2 0 6 0 0 0 2 3 6 1 2 We then add the diagonal numbers**(Step 4 ) Multiply 301 x 1.2**3 0 1 0 3 0 0 0 1 1 2 0 6 0 0 0 2 3 6 1 2 • Now add the decimal point one place • Answer = 361.2**Multiply 4.5 x 631**6 3 1 2 4 1 2 0 4 4 5 2 3 0 1 5 0 5 8 3 9 5 28395 Now add the decimal point one place Answer = 2839.5**Multiply 18.4 x 2.1**1 8 4 0 2 1 6 0 8 2 1 0 1 0 8 0 4 3 8 6 4 3864 Now add the decimal point two places Answer = 38.64**Multiply 960 x 0.42**9 6 0 3 6 2 4 0 0 4 2 4 1 8 1 2 0 0 0 3 2 0 40320 Now add the decimal point two places Answer = 403.20**Multiply 134 x 1.2**1 3 4 0 1 0 3 0 4 1 2 0 2 0 6 0 8 1 6 0 8 1608 Now add the decimal point one place Answer = 160.8**Multiply 13.4 x 1.2**1 3 4 0 1 0 3 0 4 1 2 0 2 0 6 0 8 1 6 0 8 1608 Now add the decimal point two places Answer = 16.08**Multiply 1.34 x 1.2**1 3 4 0 1 0 3 0 4 1 2 0 2 0 6 0 8 1 6 0 8 1608 Now add the decimal point three places Answer = 1.608**Jon bought 27 lengths of decking each 1.75m long**What was their total length 1 7 5 0 2 1 0 1 4 2 7 0 7 3 5 4 9 4 7 5 2 4725 Now add the decimal point one place Answer = 47.25 m**Talia worked for 23 hours at a rate of £6.35 an hour.**How much was the total earnings? 6 3 5 1 2 1 0 0 6 2 3 1 1 8 1 5 0 9 4 6 5 0 14605 Now add the decimal point two places Answer = £146.05**Gwen sells kites for £4.75 each. She sells 26 kites.**How much does she get for the 26 kites? 4 7 5 0 8 1 0 1 4 2 6 1 2 4 3 0 4 2 2 3 0 5 12350 Now add the decimal point two places Answer = £123.50**A shop sells plants for 95p. Find the cost of 35 plants?**9 5 1 5 2 7 3 5 2 5 4 5 3 3 5 2 3325 Now add the decimal point two places Answer = £33.25 pence**Further exercises**1a. 257 x 57 b. 309 x 8.3 c. 573 x 0.48 d. 812 x 603 e. 912 x 56.3 14,649 2,564.7 275.04 489,636 51,345.6**Further exercises**2.A caterer charges £16 per head. How much is the charge for 45 people? £720 3. There are 48 tins in each tray. How many are there in 35 trays? 1,680 tins**Further exercises**4. A school has 36 classes. Each class has 31 children. How many children are there at the school? 5. A concert hall has 85 rows of 48 seats. What is the total number of seats? 1,116 children 4,080 seats

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