Question
Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 18 km + 23 km = ___ km
  2. 34 kg + 23 kg = ____ kg
  3. 12 ℓ - 17 ℓ = _____ ℓ
  4. 513 m - 123 m = _____ m 
2 m

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Find the following values without a calculator. 
Give your answers in this manner. (Eg 122334, 45)
  1. 18 km + 23 km = ___ km
  2. 34 kg + 23 kg = ____ kg
  3. 12 ℓ - 17 ℓ = _____ ℓ
  4. 513 m - 123 m = _____ m