Đặt tính và tính
6947 + 2528 2817 x 3
8291 - 635 9640 : 5
Đặt tính rồi tính:
5947 + 3528 8291 - 635 2817 x 3 9640 : 5
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3156 x 2 + 4156 b. Tìm y 9640 : y = 8
5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5x5x5x5x5x5xx5x5xxx555xxx555xxx5555xxx55x5x5xx5xx5x5x5x5x5xxxxxxxxxxxx555x5x55x5x5x5x5x5x5x5x5x5x5x5x5x8x8x8x8x8x8x8x8x8=?
Điền số thích hợp vào chỗ chấm
a) 5 + 5 + 5 + 5 + 5 = 5 x …
b) 5 + 5 – 5 + 5 + 5 = 5 x …
c) 5 – 5 + 5 + 5 + 5 + 5 = 5 x …
d) 5 + 5 + 5 + 5 + 5 + 5 = 5 x …
(5+5+5+5+5+5+5+5+5+5)*10=
5+5+5+5+5+5+5+5+5
5+6+7+5+5+5+5+5+5+5=5+5=?giup
9*5+5*5+5*5+5*5+5*5