Question
Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 25 km + 13 km = ___ km
  2. 78 kg + 45 kg = ____ kg
  3. 23 ℓ - 19 ℓ = _____ ℓ
  4. 457 m - 213 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. 25 km + 13 km = ___ km
  2. 78 kg + 45 kg = ____ kg
  3. 23 ℓ - 19 ℓ = _____ ℓ
  4. 457 m - 213 m = _____ m