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341 x 67 + 341 x 16 + 659 x 83
= 341 x (67 + 16) + 659 x 83
= 341 x 83 + 659 x 83
= (341 + 659) x 83
= 1000 x 83
= 83000
341*67+341*16+659*83
=341*(67+16)+659*83
=341*83+659*83
=89*(341+659)
=89*1000
=89000
\(77+54+967+946+5033=\left(967+5033\right)+\left(946+54\right)+77=6000+1000+77=7077\)
\(341.67+341.16+659.83=341\left(67+16\right)+659.83=341.83+659.83=83\left(341+659\right)=83.1000=83000\)
b: Ta có: \(341\cdot67+341\cdot16+659\cdot83\)
\(=341\cdot83+659\cdot83\)
=83000
341×67+341×16+65×83
=341×(67+16)+65×83
=341×83+65×83
=(341+65)×83
=406×83
=33698
k mik nha
a)\(341\times67+341\times16+659\times83=\left[341\times\left(67+16\right)\right]+659\times83\)
\(=341\times83+659\times83=83\times\left(341+659\right)=83\times1000=83000\)
b)\(30\%\times x+x=52\Rightarrow\frac{3}{10}\times x+x=52\Rightarrow x\times\left(\frac{3}{10}+1\right)=52\)
\(\Rightarrow x\times1,3=52\Rightarrow x=52:1,3\Rightarrow x=40\)
c)\(75\%\times x+\frac{3}{4}\times x+x=30\Rightarrow\frac{3}{4}\times x+\frac{3}{4}\times x+x=30\Rightarrow x\times\left(\frac{3}{4}+\frac{3}{4}+1\right)=30\)
\(\Rightarrow x\times\frac{5}{2}=30\Rightarrow x=30:\frac{5}{2}\Rightarrow x=12\)
`@` `\text {Ans}`
`\downarrow`
`2023 \times 14 + 2023 \times 83+97`
`= 2023 \times (14+83) + 97`
`= 2023 \times 97 + 97`
`= 196231 +97`
`= 196328`
`78 \times 31+78 \times 24+78 \times 17+78 \times 22 \times 72`
`= 78 \times (31+24+17+22 \times 72)`
`= 78 \times (31+24+17+1584)`
`= 78 \times 1656`
`= 129168`
`371 \times 69+371 \times 14+629 \times 83`
`= 371 \times (69+14) + 629 \times 83`
`= 371 \times 83 + 629 \times 83`
`= 83 \times (371+629)`
`= 83 \times 1000`
`= 83000`
`91 \times 51+49 \times 163-49 \times 72`
`= 91 \times 51 + 49 \times (163-72)`
`= 91 \times 51+49 \times 91`
`= 91 \times (51+49)`
`= 91 \times 100`
`= 9100`
`3 \times 12 \times 17 + 4 \times 9 \times 81 + 2 \times 6 \times 6`
`= 9 \times 4 \times 17 + 4 \times 9 \times 81 + 4 \times 9 \times 2`
`= 9 \times 4 \times (17+81+2)`
`= 36 \times 100`
`= 3600`
`42 \times 17 + 58 \times 83 \times 42 \times 83 + 42 \times 83 + 17`
`= 17 \times (42+58) + 42 \times 83 \times (58 \times 83 +1)`
`= 17 \times 100 + 3486 \times 4815`
`= 1700 + 16785090`
`= 16786790`
341 x 67 + 371 x 16 + 659 x 83
= 22847 + 5936 + 54697
= 83480