Click a card to flip it and reveal the answer.
Task cards — solve, then click to check.
Equalities: convert and pick the factor. Sense checks: bigger or smaller?
E1
EQUALITY: 1 km = 1000 m Convert: 2.5 km = ___ m
ANSWER
2500 m — factor 1000 m/1 km; m is smaller, more of them
E2
EQUALITY: 1 L = 1000 mL Convert: 0.75 L = ___ mL
ANSWER
750 mL — factor 1000 mL/1 L; mL smaller, more of them
E3
EQUALITY: 1 cm³ = 1 mL Convert: 25 cm³ = ___ mL
ANSWER
25 mL — factor 1 mL/1 cm³ exact; equal volumes
E4
EQUALITY: 1 g = 1000 mg Convert: 1.2 g = ___ mg
ANSWER
1200 mg — factor 1000 mg/1 g; mg smaller, more of them
F1
FLIP — Which factor? 2.5 km to m: need km to cancel
ANSWER
1000 m over 1 km (km on bottom)
F2
FLIP — Which factor? 0.75 L to mL: need L to cancel
ANSWER
1000 mL over 1 L (L on bottom)
S1
SENSE check — 2.5 km in m: bigger or smaller?
ANSWER
2.5 km is town-scale; 2500 m is many meters — sensible
S2
SENSE check — 1.2 g in mg: bigger or smaller?
ANSWER
1.2 g ~ paperclip; 1200 mg many small units — sensible