90+90+90+90+90=90.5=450
80+80+80+80+80=80.5=400
90 + 90 + 90 + 90 + 90 = 450
80 + 80 + 80 + 80 + 80 =400
tk mik đi
90 + 90 + 90 + 90 + 90 = 90 x 5 = 450
80 + 80 + 80 + 80 + 80 =80 x 5 = 400
Nhớ k nha Tieu Tinh Tinh
90 + 90 + 90 + 90 + 90
= 180 + 90 + 90 + 90
= 270 + 90 + 90
= 360 + 90
= 450
90 + 90 + 90 + 90 + 90
= 90 x 5
= 450
80 + 80 + 80 + 80 + 80
= 160 + 80 + 80 + 80
= 240 + 80 + 80
= 320 + 80
= 400
80 + 80 + 80 + 80 + 80
= 80 x 5
= 400
80+80+80+80+80=400
90+90+90+90+90=450
tổng 1 là :
90 * 5 = 450
tổng 2 là :
80*5 = 400
đáp số : tổng 1 : 450
tổng 2 :400
90 + 90 + 90 + 90 + 90 = 90 x 5 = 450 80 + 80 + 80 + 80 + 80 = 80 x 5 = 400
90 + 90 +90+90+90 = 90 * 5 = 450
80+80+80+80+80 = 80 * 5 = 400 nha