\(69 + 65 = ?\)
g) (15 + 37) + (52 – 37 – 17) h) (38 – 42 +14) - (38 – 42 - 15) i) (27 + 65 ) + (346 - 27- 65) k) - (27 + 65) - (346 – 27 - 65) l) (42 – 69 + 17) - (42 + 17) m) 24. (16 - 5) – 16. (24 – 5 ) n) (-12). 47 – 12 . 52 + (-12) p) 51 . (69 - 25) – 69. (51 - 25) |
g) (15 + 37) + (52 – 37 – 17) = 15 + 37 + 52 – 37 – 17 = 15 + 52 – 17 = 50 h) (38 – 42 +14) - (38 – 42 - 15) = 38 – 42 +14 - 38 + 42 + 15 = 14 + 15 = 29 i) (27 + 65 ) + (346 - 27- 65) = 27 + 65 + 346 - 27- 65 = 346 k) - (27 + 65) - (346 – 27 - 65) = -27 - 65 - 346 + 27 + 65 = -346 l) (42 – 69 + 17) - (42 + 17) = 42 – 69 + 17 - 42 - 17 = – 69 m) 24. (16 - 5) – 16. (24 – 5 ) = 24. 16 - 24 . 5 - 16 . 24 + 16. 5 = - 24 . 5 + 16. 5 = -8 . 5 = -40 n) (-12). 47 – 12 . 52 + (-12) = -12 (47 - 52 + 1) = -12 . (-4) = 48 p) 51 . (69 - 25) – 69. (51 - 25) = 51 . 69 - 51 . 25 – 69. 51 + 69. 25 = - 51 . 25 + 69. 25 = (- 51+ 69).25 = 450 |
5*9*69*6*65*65*59**965525***895969988*85665556151565656666666666666666666666666111/888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888 =
điêu đây mà là bài lớp 5 á
a, (27 + 65 ) + ( 346 - 27 - 65 ) b, ( 42 - 69+ 17 ) - ( 42 + 17 )
b = (42+(-69) +17)-59
=(-10)-59= -69
a) (27 + 65 ) + ( 346 - 27 - 65 )
=27 + 65 + 346 - 27 - 65
= (27 - 27) + (65-65) + 346
= 346
b, (42 - 69+ 17 ) - ( 42 + 17 )
=42 - 69+ 17-42 - 17
=(42-42) + (17-17) -69
=-69
(27+65)+(346-27-65)
(42-69+17)-(42+17)
a, (27+65)+(346-27-65) = 27 + 65 + 346 - 27 - 65 = ( 27 - 27 ) + ( 65 - 65 ) + 346 = 0 + 0 + 346 = 346 b, (42-69+17)-(42+17) = 42 - 69 + 17 - 42 - 17 = ( 42-42) + ( 17-17) - 69 = 0 + 0 - 69 = - 69
a) (27+65)+(346-27-65)
= 27+65+346-27-65
= (27-27)+(65-65)+346
= 0+0+346
=346
b) (42-69+17)-(42+17)
= 42-69+17-42-17
= (42-42)+(17-17)-69
= 0+0-69
=0-69
=-69
Tick ✔ cho mình nhé!❤❤✰✱✳✽❄❆❉
(27+65)+(346-27-65)= 27+65+346-27-65
= (27-27)+(65-65)+346
= 0+0+346
= 346
(42-69+17)-(42+17)= 42-69+17-42-17
= (42-42)+(17-17)-69
= 0+0-69
= -69
36+25+65+69+25+2
số đó là
222
ai k mình
với nhé các bn
mình thề là mình k lại cho
5+5+58+65+69+25
Bo dau ngoac roi tinh
(27+65)+(346-27-65)
(42-69+17)-(42+17)
bạn lấy máy tính ra bấm nhé
tick mik nha bạn Quỳnh Anh dễ thương
=27+65+346-27-65
=(27-27)+(65-65)+346
=0+0+346
=346
b)=42-69+17-42-17
=(42-42)+(17-17)-69
=0+0-69
=-69
< , > , =
45/87 .... 65/23
67/45 .... 55/44
57/85 .... 69/60
\(\dfrac{45}{87}< \dfrac{65}{23}\)
\(\dfrac{67}{45}>\dfrac{43}{180}\)
\(\dfrac{57}{85}< \dfrac{69}{60}\)
45/87 < 65/23
67/45 > 55/44
57/85 < 69/60
65+891+135+989 / 731-47+69-253 = ?
65+891+135+989/731-47+69-253 = (65+135) + (891+69) - 47 - 253 + 989 / 731
= 200 + 960 - 300 + 989/731
= 860 + 989/731
= 14643/17