Question
Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 23 km + 15 km = ___ km
  2. 38 kg + 79 kg = ____ kg
  3. 47 ℓ - 18 ℓ = _____ ℓ
  4. 525 m - 223 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. 23 km + 15 km = ___ km
  2. 38 kg + 79 kg = ____ kg
  3. 47 ℓ - 18 ℓ = _____ ℓ
  4. 525 m - 223 m = _____ m