Question
Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 19 km + 29 km = ___ km
  2. 23 kg + 56 kg = ____ kg
  3. 59 ℓ - 27 ℓ = _____ ℓ
  4. 512 m - 159 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. 19 km + 29 km = ___ km
  2. 23 kg + 56 kg = ____ kg
  3. 59 ℓ - 27 ℓ = _____ ℓ
  4. 512 m - 159 m = _____ m