Question

(1кг-1200г:40)*4=... =...

Answer 1

1кг-1000гр

1200/40=30

1000-30=970

970*4=

Answer 2

(1кг-1200г:40)*4=(1000-1200:40)*4=

1)1200:40=30

2)1000-30=970

3)970*4=3880

3880г=3,88кг