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7000 + 2000 = 9000
16000 : 2 = 8000
9000 - 3000 = 6000
8000 x 3 = 24 000
8000 : 2 = 4000
11000 x 3 = 33 000
3000 x 2 = 6000
49000 : 7 = 7000
7000 + 2000 = 9000
16000 : 2 = 8000
9000 - 3000 = 6000
8000 x 3 = 24 000
8000 : 2 = 4000
11000 x 3 = 33 000
3000 x 2 = 6000
49000 : 7 = 7000
Hướng dẫn giải:
6000 + 3000 + 1000 = 10 000
56 000 : 7 = 8000
5000 x 3 = 15 000
9000 – 7000 – 2000 = 0
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a) 4 x 2145 = d) (2100 + 45) x 4 (a = d)
c) 3964 x 4 = (4x 2) x(3000 + 964) (c = g)
e) 10287 x 5 = b) (3 + 2) x 10287 (b = e)
a) 4 x 2145 = d) (2100 + 45) x 4 (d)
c) 3964 x 4 = (4x 2) x(3000 + 964) (g)
e) 10287 x 5 = b) (3 + 2) x 10287 (b)
Bài 41: Tìm 2 biểu thức có giá trị bằng nhau:
a) \(4.2145=8580\)
b) \(3964.6=23784\)
c) \(10287.5=51435\)
d) \(\left(3+2\right).10287=5.10287=51435\)
e) \(\left(2100+45\right).4=2145.4=8580\)
g) \(\left(4+2\right).\left(3000+964\right)=6.3964=23784\)
Vậy các cặp có giá trị bằng nhau là:
\(4.2145=\left(2100+45\right).4\)
\(3964.6=\left(4+2\right).\left(3000+964\right)\)
\(10287.5=\left(3+2\right).10287\)
a/ 4 x 2145 = 2145 x 4
b/ 3964 x 6 = 6 x 3964
c/ 10287 x 5 = 5 x 10287
d/ ( 3 + 2 ) x 10287 = 10287 x ( 3 + 2 )
e/ ( 2100 + 45 ) x 4 = 4 x ( 2100 + 45 )
g/ ( 4 + 2 ) x ( 3000 + 964 ) = ( 4 + 2 ) x ( 3000 + 964 )
Đoán mò thôi :)))
\(25000+25000\)X \(3000\)
\(=25000+\)\(75000000\)
\(=75025000\).
\(k\)\(nha\).
25000 + 25000 x 3000
= 25000 x 2 x 3000
= 50000 x 3000
= 150000000
Đúng 100%
7000 + 2000 = 9000
9000 - 3000 = 6000
8000 : 2 = 4000
3000 x 2 = 6000
Hướng dẫn giải:
a) 3000 + 13000 – 6000 = 10000
b) 3000 x 4 = 12000
c) 25000 : 5 = 5000
d) 2000 x 3 : 2 = 3000.