Răspuns :
a : b = (24 : 4 )= 6
a + b = 21
_ _ _ _ _ _
_ } 21
21: 7 ( segmente ) = 3 (b)
21-3=18 (a)
18:3=6
18 +3 = 21
a + b = 21
_ _ _ _ _ _
_ } 21
21: 7 ( segmente ) = 3 (b)
21-3=18 (a)
18:3=6
18 +3 = 21
a ÷ b = 6 ,
24 ÷ 4 = 6 ,
a + b = 21 ,
a = ? , b = ? ,
a /---/---/---/---/---/---/ , b /---/ } 21 , 21÷7 = 3 (b) , 21 - 3 = 18 (a)