35 x 18 - 9 x 70 + 100
= 35 x 2 x 9 - 9 x 70 + 100
= 70 x 9 - 9 x 70 + 100
= 0 + 100
= 100
Tính nhanh :
35 × 18 - 9 × 70 + 100
= 35 × ( 2 × 9 ) - 9 × 70 + 100
= 35 × 2 × 9 - 9 × 70 + 100
= ( 35 × 2 ) × 9 - 9 × 70 + 100
= 70 × 9 - 9 × 70 + 100
= 9 × ( 70 - 70 ) + 100
= 9 × 0 + 100
= 0 + 100
= 100
35 X 18 - 9 X 70 + 100
= 35 X 2 X 9 - 9 X 70 + 100
= 70 X 9 - 9 X 70 + 100
= 70 X (9 - 9) + 100
= 70 X 0 + 100
= 0 + 100
= 100
Tk cho mình nha ae!!!!!!!!!!!!! Ai tk mình thì mình tk lại.
35 x 18 - 9 x 70 + 100 = ?
= 630 - 630 + 100
= 0 + 100
= 100.
Đáp số : 100
Học tốt
35 × 18 - 9 × 70 + 100
= 35 × ( 2 × 9 ) - 9 × 70 + 100
= 35 × 2 × 9 - 9 × 70 + 100
= ( 35 × 2 ) × 9 - 9 × 70 + 100
= 70 × 9 - 9 × 70 + 100
= 9 × ( 70 - 70 ) + 100
= 9 × 0 + 100
= 0 + 100
= 100
hok tốt
35 x 18 - 9 x 70 + 100
= 35 x 2 x 9 - 9 x 70 + 100
= ( 35 x 2 x 9 - 9 x 35 x 2 ) + 100
= 0 + 100
= 100
