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\(141\cdot25+216109\cdot3\)
\(=3\cdot47\cdot25+216109\cdot3\)
\(=3\left(47\cdot25+216109\right)\)
\(=3\cdot217284=651852\)
\(523790-305\cdot26\cdot3\)
\(=2\cdot5\cdot52379-2\cdot5\cdot13\cdot61\cdot3\)
\(=10\left(52379-13\cdot61\cdot3\right)\)
\(=10\cdot50000=500000\)
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a) 8 359 + 305 x 38
= 8359 + 11590
= 19949
b) 4 824 - (9 365 - 5 465) : 15
= 4824 - 3900 : 15
= 4824 - 260
= 4564
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786 x ( 52 + 18 ) + 232 x ( 18 + 52 )
= 786 x 70 + 232 x 70
= 70 x ( 786 + 232 )
= 70 x 1018
= 71260
786 x ( 52 + 18 ) + 232 x ( 18 + 52 )
= 786 x 70 + 232 x 70
= 70 x ( 786 + 232 )
= 70 x 1018
= 71260
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A \(\frac{2}{3}+y=\frac{11}{12}.5\)
\(\Rightarrow\frac{2}{3}+y=\frac{55}{12}\)
\(\Rightarrow y=\frac{55}{12}-\frac{2}{3}\)
\(\Rightarrow y=\frac{55}{12}-\frac{8}{12}\)
\(\Rightarrow y=\frac{47}{12}\)
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1036 + 64 x 52 - 1827
= 1036 + 3328 - 1827
= 4364 - 1827
= 2537
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a) 78493 + 4526 x 53
= 78493 + 239878
= 318371
b) 923746 – 438464: 52
= 923746 - 8432
= 915314
a 78493 + 4526 x 53
=78493 + 80878
= 159371
b 923746 - 438464 :52
= 923746 - 8432
= 915314
1001 + 305 x 52 = 1001 + 15860
= 16861