Simple Interest – Calculator – Four in a Row Competing in pairs, students should select a question on the left and calculate an answer. They should attempt to get four answers in a row on the answer grid (using Xs or Os). It may be necessary to set a time limit for students selecting questions! Worksheets increase in difficulty and are in a variety of sizes.

Printing To print handouts from slides - Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides - Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts - Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

4 in a Row ② Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Questions Starting Amount Interest Rate Time £80 2% 2 Years 5% £150 8% 3 Years 10% £200 15% £ Answer Grid 15 48 12 30 24 19.20 8 45 16 67.50 3.20 36 60 4.80 40 22.50 6 90 9 12.80 20 32

4 in a Row ① 4 in a Row ① Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Questions Questions Starting Amount Interest Rate Time £100 1% 2 Years 5% £200 10% 3 Years 15% £300 20% Starting Amount Interest Rate Time £100 1% 2 Years 5% £200 10% 3 Years 15% £300 20% £ £ Answer Grid Answer Grid 40 4 30 20 45 90 60 120 2 80 3 6 135 15 9 180 10 40 4 30 20 45 90 60 120 2 80 3 6 135 15 9 180 10

4 in a Row ② 4 in a Row ② Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Questions Questions Starting Amount Interest Rate Time £80 2% 2 Years 5% £150 8% 3 Years 10% £200 15% Starting Amount Interest Rate Time £80 2% 2 Years 5% £150 8% 3 Years 10% £200 15% £ £ Answer Grid Answer Grid 15 48 12 30 24 19.20 8 45 16 67.50 3.20 36 60 4.80 40 22.50 6 90 9 12.80 20 32 15 48 12 30 24 19.20 8 45 16 67.50 3.20 36 60 4.80 40 22.50 6 90 9 12.80 20 32

4 in a Row ③ 4 in a Row ③ Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Simple Interest: Choose a combination of starting amount, interest rate & time. Find the interest earned in the Answer Grid and mark it (X or O). If there are duplicates, you must choose one! The first player to get 4 in a row wins! Questions Questions Starting Amount Interest Rate Time £50 3% 2 Years 4.5% £120 9% 5 Years 14% £180 17.5% Starting Amount Interest Rate Time £50 3% 2 Years 4.5% £120 9% 5 Years 14% £180 17.5% £ £ Answer Grid Answer Grid 27 4.50 50.40 16.20 11.25 105 21.60 63 10.80 17.50 7.20 3 81 22.50 126 84 35 40.50 33.60 18 7.50 54 42 14 9 157.50 32.40 43.75 27 4.50 50.40 16.20 11.25 105 21.60 63 10.80 17.50 7.20 3 81 22.50 126 84 35 40.50 33.60 18 7.50 54 42 14 9 157.50 32.40 43.75

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