Câu hỏi của Robby

Question

- Tính :a) 160 - ( 2^3 . 5^2 - 6 . 25 )b) 4 . 5^2 - 32 . 2^4c) 5871 : [ 928 - ( 247 - 82 ) . 5 ]d) 777 : 7 + 1331 : 11^3 e) 17 . 85 + 15 . 17 - 120f) 15 . 141 + 59 . 15g) 20 - [ 30 - ( 5 - 1 ) ^2 ]h)...

Ngô Thị Hương Giang · Accepted Answer

160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=1104.5^2-32.2^4= 4.25 - 32.16= 100-512=-4125871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57777:7+1331:11^3 = 111+1331:1331 = 111+1=11217.85+15.17-120=17(85+15)-120=17.100-120=1700-120=158015.141+59.15=15(141+59)=15.200=300020-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=937-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216Câu trả lời: 160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=1104.5^2-32.2^4= 4.25 - 32.16= 100-512=-4125871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57777:7+1331:11^3 = 111+1331:1331 = 111+1=11217.85+15.17-120=17(85+15)-120=17.100-120=1700-120=158015.141+59.15=15(141+59)=15.200=300020-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=937-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216

Sarah · Answer

160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=1104.5^2-32.2^4= 4.25 - 32.16= 100-512=-4125871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57777:7+1331:11^3 = 111+1331:1331 = 111+1=11217.85+15.17-120=17(85+15)-120=17.100-120=1700-120=1580 15.141+59.15=15(141+59)=15.200=300020-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=937-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216 Câu trả lời: 160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=1104.5^2-32.2^4= 4.25 - 32.16= 100-512=-4125871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57777:7+1331:11^3 = 111+1331:1331 = 111+1=11217.85+15.17-120=17(85+15)-120=17.100-120=1700-120=1580 15.141+59.15=15(141+59)=15.200=300020-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=937-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216

1) 17 . 85 + 15 . 17 – 120	9)
2) 2³ . 17 – 2³ . 14	10)
3) 20 +	11) 5871: {928 -[(-82) +247) ].5}
4) 28.76+23.28 -28.13	12) 11²:11-55
5) 15.36 – 15.10 + 26.85	13)
6) 75 – ( 3.5² – 4.2³)	14)
7) 4.5² – 3.2³ + 3³:3²	15)
8) 80 – (4 . 5² – 3 . 2³)	9) 80 – 73.3 10) -8 – 51.2

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