Sagot :
Réponse :
bonjour,
21 × 98 = 21 ( 100 -2 )
21 ( 100 -2 )
= 21×100 - 21×2
=2100 - 42
= 2058
4 × 3 + 4 × 2 = 4 ( 3 + 2 )
voila :)
at_answer_text_math
1) 21*98 = 21*100-21*2= 2100-42=2058
2) 4(3+2)
at_explanation_text_math
Réponse :
bonjour,
21 × 98 = 21 ( 100 -2 )
21 ( 100 -2 )
= 21×100 - 21×2
=2100 - 42
= 2058
4 × 3 + 4 × 2 = 4 ( 3 + 2 )
voila :)
at_answer_text_math
1) 21*98 = 21*100-21*2= 2100-42=2058
2) 4(3+2)
at_explanation_text_math