Quick Method of Units To change cm into km, move your decimal five places to the left. ex. 550 000 cm = 5.5 km Practice 1. Make the following conversions using the shortcut method. a) 27 000 cm = km c) 7 500 cm = km b) 330 000 cm = km d) 2 426 000 cm = km Section C: Changing from Scale to Scale It is easiest to calculate distance using a Stated Scale, but most Stated Scales. maps don’t include So, to change Ratio Scale into Stated Scale, do the following. Write the Ratio Scale. 1:550 000 Change it to a Stated Scale. 1 cm = 550 000 cm Change the Stated Scale Units from cm into km, by moving your decimal ______________ to the left. 1 cm = 5.5 km Practice 2. Find the ratio scale of the map in the Nystrom Atlas and change it to a stated scale. Ex. p108 1 : 17 400 000 1 cm = 17 400 000 cm 1 cm = 174 km a) p40 b) p49 c) p64 d) p96 Section D: Solving scale questions using . Now that you know how to change a ratio scale into a stated scale, you can calculate the real distance between two places shown on a map. To do so though, you need to know how to Practice 3. Solve these questions using cross-multiplication.
Quick Method of Units To change cm into km, move your decimal five places to the left. ex. 550 000 cm = 5.5 km Practice 1. Make the following conversions using the shortcut method. a) 27 000 cm = km c) 7 500 cm = km b) 330 000 cm = km d) 2 426 000 cm = km Section C: Changing from Scale to Scale It is easiest to calculate distance using a Stated Scale, but most maps don’t include Stated Scales. So, to change Ratio Scale into Stated Scale, do the following. Write the Ratio Scale. 1:550 000 Change it to a Stated Scale. 1 cm = 550 000 cm Change the Stated Scale Units from cm into km, by moving your decimal ______________ to the left. 1 cm = 5.5 km Practice 2. Find the ratio scale of the map in the Nystrom Atlas and change it to a stated scale. Ex. p108 1 : 17 400 000 1 cm = 17 400 000 cm 1 cm = 174 km a) p40 b) p49 c) p64 d) p96 Section D: Solving scale questions using . Now that you know how to change a ratio scale into a stated scale, you can calculate the real distance between two places shown on a map. To do so though, you need to know how to Practice 3. Solve these questions using cross-multiplication.
geography_7_-_scale.docx