Question
Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 57 km + 17 km = ___ km
  2. 47 kg + 57 kg = ____ kg
  3. 34 ℓ - 15 ℓ = _____ ℓ
  4. 478 m - 149 m = _____ m 
2 m

Click button first when a symbol is required. X

Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 57 km + 17 km = ___ km
  2. 47 kg + 57 kg = ____ kg
  3. 34 ℓ - 15 ℓ = _____ ℓ
  4. 478 m - 149 m = _____ m