\(53.39+47.40-53.21-47.42\)
\(=2067+1880-1113-1034\)
\(=3947-1113-1034\)
\(=2834-1034\)
\(=1800\)
\(53.39+47.40-53.21-47.42\)
\(=2067+1880-1113-1034\)
\(=3947-1113-1034\)
\(=2834-1034\)
\(=1800\)
341 x 67 + 341 x 16 + 659 x 83
42 x 53 + 47 x 156 - 47 x 144
53 x 39 + 47 x 39 - 53 x 21 - 47 x 21
2 x 53 x 12 + 4 x 6 x 87 - 3 x 8 x 40
tính nhanh:
a:53*39+47*39-53*21-47*21
b:2*53*12+4*6*87-3*8*40
c:5*7*77-7*60+49*25-15*42
53 . 39 + 47 . 39 - 53 . 21 - 47 .21
Tính nhanh :
a)53 . 39 + 47 . 39 - 53 . 21 - 47 . 21
b)2. 53 . 12 + 4 . 6 . 87 - 3 . 8 . 40
c)5 . 7 . 77 - 7 . 60 + 49 . 25 - 15 . 42
tính nhanh
53 + 39 + 47 x 39 - 53 x 21 - 47 x 21
Tính nhanh
53 x 39 + 47 x 39 - 53 x 21 - 47 x 21
c.53 ×39+47×39 + 53 x 21 + 47 x 21
D . 2 x 53 x 12 + 4 x 6 x 87 - 3 x 8 x 40
ai giải dc mik cho 2 tick
NMD♤》
53 * 39 + 43 * 39 – 53 * 21 – 47 * 21
Tính hợp lý:
a, 53 x 39 + 47 x 39 - 53 x 21 - 47 x 21
b,2 x 53 x 12 + 4 x 6 x 87 - 3 x 8 x 40
c,5 x 7 x 77 - 7 x 60 +49 x 25 -15 x 42.
Tính hợp lí
a) 1050:15-150:15+150:19+1940
b)53*39+47*39-53*21-47*21
c)2*53*12+4*6*87