Calculations With Power of Ten – Treasure Trail Individual students (or pairs) can start the trail at any question poster. Once they have calculated the answer they should then find the poster that has that answer at the top. Students go from one question to the next until they have completed the full circular trail. Students should record the letters of the questions they have completed. (Clear plastic wallets around your classroom make it quick and easy to display posters.)

Printing To print full page posters - Click: File > Print. Enter ‘4-20’ in ‘Slides:’ or Click on the section title to highlight all posters. To print half-size posters - File > Print. Select ‘Full Page Slides’, then ‘2 Slides’.

Powers of Ten

250,000 S 2. 45 × 103

1,200 B 2.5 × 104

200 P 3.0 × 103

300 A 30×4000

23.5 G 500 ×500

1,000,000 K 2.3 × 103

120,000 M 2.35 × 101

E 2,300 4000÷200

25,000 C 6000 ÷20

235 D 5000 ×200

30 N 2.35 × 104

20 H 40 ×300

12,000 O 1.2 × 103

2,450 L 80000 ÷400

23,500 X 2.35 × 102

3,000 F 90000 ÷3000

Teacher’s Answer Sheet X 235 H 12,000 A 120,000 L 200 D 1,000,000 O 1,200 M 23.5 P 3,000 K 2,300 B 25,000 G 250,000 F 30 E 20 C 300 S 2,450 N 23,500

answers x d k e h o b n c f a p l s g m

Answer Sheet Sheet Answer

tom@goteachmaths.co.uk Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk