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Measurement 7 - Reading a Ruler (Half Centimeters)
Read each measurement and write the value in the blank.
Practice and check
Worked example
Start at zero, follow the object endpoint to the ruler, and count the intervals with the unit.
(2 + 3) ÷ 2 = 2.5 cm
Check answers after trying
1: 2.5 cm; 2: 6.5 cm; 3: 4.5 cm; 4: 8.5 cm; 5: 1.5 cm; 6: 9.5 cm; 7: 3.5 cm; 8: 7.5 cm
0–10 cm
Tips for Parents
▸ Practice and check The answers on this page end in half a centimeter: halfway between 2 and 3 is 2.5 cm; halfway between 6 and 7 is 6.5 cm. Each small interval is 1 mm (0.1 cm). Five intervals make 0.5 cm; the longer middle tick marks half a centimeter. Count the spaces from the previous whole centimeter and check where the object ends. ▸ Worked example (2 + 3) ÷ 2 = 2.5 cm ▸ Check answers after trying 0–10 cm ▸ Next worksheet Reading Volume. Shared practice guide.
What This Worksheet Builds
Each small interval is 1 mm (0.1 cm). Five intervals make 0.5 cm; the longer middle tick marks half a centimeter. Count the spaces from the previous whole centimeter and check where the object ends.
Next Step
Next worksheet: Reading Volume. Shared practice guide.