Keys Skills Multiplication using lattice method STUDENT VERSION November 2007. Kindly contributed to the Adult Basic Skills Resource Centre http://www.skillsworkshop.org by Paul Hodson, Dudley College. paul.hodson@dudleycol.ac.uk Important. This PPT does not supply answers and extra information as this is to be discussed and developed with students as part of the teaching process. PLEASE REFER TO THE TEACHER’S VERSION for answers, etc. Main curriculum links N1/L1.3 Add, subtract, multiply and divide using efficient written methods. N1/L2.2 Carry out calculations with numbers of any size using efficient methods. N2/L1.5 Add, subtract, multiply and divide decimals up to two places. N2/L2.6 Add, subtract, multiply and divide decimals up to three places.

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

Multiply 301 x 1.2

Multiply 4.5 x 631

Multiply 18.4 x 2.1

Multiply 960 x 0.42

Multiply 134 x 1.2

Multiply 13.4 x 1.2

Multiply 1.34 x 1.2

Jon bought 27 lengths of decking each 1.75m long What was their total length

Talia worked for 23 hours at a rate of £6.35 an hour. How much was the total earnings?

Gwen sells kites for £4.75 each. She sells 26 kites. How much does she get for the 26 kites?

A shop sells plants for 95p. Find the cost of 35 plants?

Further exercises 1a. 257 x 57 b. 309 x 8.3 c. 573 x 0.48 d. 812 x 603

Further exercises 2. A caterer charges £16 per head. How much is the charge for 45 people? 3. There are 48 tins in each tray. How many are there in 35 trays?

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?