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2022-11-24 20:43:28
2022-11-24 20:42:12
2022-11-24 20:40:31
4 x 21 x 25 = 21 x ( 4 x 25 ) = 21 x 100 = 2100
607 x 92 + 607 x 8 = 607 x ( 92 + 8 ) = 607 x 100 = 60700
63 x 178 - 53 x 178 = 178 x ( 63 - 53 ) = 178 x 10 = 1780
8 x 4 x 25 x 125 = ( 8 x 125 ) x ( 4 x 25 ) = 1000 x 100 = 100 000
Mong lời giải của mình giúp ích cho bạn ^^
2022-11-24 20:36:43
A - S
B - Đ
C - Đ
D - S mong giúp ích cho bạn ^^
2022-11-24 20:31:34
461 x 42 + 461 x 58
= 461 x ( 42 + 58 )
= 461 x 100
= 46100 nha bạn ^^
2022-11-24 20:29:15
Chắc là thấp hơn 7m so với mực nước biển đó bạn ^^
2022-11-24 20:26:45
200,03 nha bạn ^^
2022-11-24 20:25:45
a = 1 + 2 + 3 + ... + 99 + 100
ta thấy có 49 cặp số 1-99, 2-98 ... có tổng là 100, thừa số 100 và số 50 ở giữa vậy ta có
a = ( 1 + 99 ) + ( 2 + 98 ) + ... + 50 + 100
a = 49 x 100 + 150
a = 5050 nha bạn ^^
2022-11-24 20:22:25
2022-11-24 20:08:53
- Mong giúp ích cho bạn ^^