a, ( 46 + 54 ) + 17 = 100 + 17 = 117

b, ( 4 . 25 ) . 37 = 100 . 37 = 3700

c, 87 . ( 36 + 64 ) = 87 . 100 = 8700

a,46+17+54

=(46+54)+17

=100+17

=117

b,4.37.25

=(4.25).37

=100.37

=3700

c,87.36+87.64

=87.(36+64)

=87.100

=8700

Chúc bạn học giỏi nha ^-^

a) 46 + 17 + 54 = 117

b) 4 . 37 . 25 = 3700

c) 87. 36 + 87 . 64 = 8700

kick mik đi

a, 117

b,3700

c,8700

\(a,=\left(123-123\right)+\left(54+46\right)=100\\ b,=\left(-64+64\right)+\left(71-111\right)=-40\)

a: =54+46=100

a. -37 + 54 + -70+ -163 + 246

= ( 54 + 246) + (-37 - 163 )  - 70

= 300 -200 -  70 = 30

b. -359+ 181+ -123+ 350+ -172

=(-178)+227+(-172)

=49+(-172)

=-123

c.-69+ 53+ 46+ -94+-14+ 78

=(-16)+(-48)+64

=-64+64

=0

d. 13- 12+ 11+10- 9+ 8- 7- 6+ 5- 4+ 3+2- 1

= 13 - (13 - 1) + (13 - 2) + (13 - 3) - (13 - 4) + (13 - 5) - (13 - 6) - (13 - 7) + (13 - 8) - (13 - 9) + (13 - 10) + (13 - 11) - (13 - 12)

= 13 - 13 + 1 + 13 - 2 + 13 - 3 - 13 + 4 + 13 - 5 - 13 + 6 - 13 + 7 + 13 - 8 - 13 + 9 + 13 - 10 + 13 - 11 - 13 + 12

= (13 - 13 + 13 + 13 - 13 + 13 - 13 - 13 + 13 - 13 + 13 + 13 - 13) + (1 - 2 - 3 + 4 - 5 + 6 + 7 - 8 + 9 - 10 - 11 = 12)

= 13 + 0

= 13

a) \(-37+54+\left(-70\right)+\left(-163\right)+246\)

\(=\left(246+54\right)-\left(37+163\right)-70\)

\(=300-200-70\)

\(=100-70=30\)

b) \(-359+181+\left(-123\right)+350+\left(-172\right)\)

\(=-359+181-123+350-172\)

\(=\left(-359+350\right)+\left(181-172\right)-123\)

\(=-9+9-123\)

\(=-123\)

c) \(-69+53+46+\left(-94\right)+\left(-14\right)+78\)

\(=-69+53+46-94-14+78\)

\(=\left(-69+78\right)+\left(53-14\right)+\left(46-94\right)\)

\(=9+39-48\)

\(=48-48=0\)

d) \(13-12+11+10-9+8-7-6+5-4+3+2-1\)

\(=\left(13-12\right)+\left(11+10\right)-\left(9-8\right)-\left(7+6\right)+\left(5-4\right)+\left(3+2-1\right)\)

\(=1+21-1-13+1+5\)

\(=21-13+1+5\)

\(=8+1+5=9+5=14\)

a. 4.37.25.50.12

  =(4.25).(50.12).37

  =100.600.37

  =2220000

\(a.\left(4.50\right).\left(25.12\right).37\)

\(=200.300.37=2220000\)

\(b.\left(46+54\right)+\left(17+83\right)\)

\(=100+100=200\)

\(c.87.\left(36+69\right)=87.105=9135\)

\(d.\left(135+65\right)+\left(360+40\right)\)

\(=200+400=600\)

\(e.\left(463+137\right)+\left(318+22\right)\)

\(=600+340=940\)

b)-359+181+(-123)+350+(-172)

=(-359+350)+181+[(-123)+(-172)]

=         -9+181+(-295)

=  172+(-295)

=     -123

a)  -37+54+(-70)+(-163)+246

=(54+246)+[(-37)+(-163)]+(-70)

=300+(-500)-(-70)

= -200+(-70)

=        -270

a) 54-37+246-163-70=30

b)181+350-359-123-172=-123

c)53+46+78-69-94-14=0

k nhanh nha

-37 + 54 + (-70) + (-163) + 246

= [-37 + (-70) + (-163)] + (54 + 246)

= [-200 + (-70)] + 300

= -270 + 300

= 30

-359 + 181 + (-123) + 350 + (-172)

= [-359 + (-123) + (-172)] + 181 + 350

= -654 + 181 + 350

= -473 + 350

= -123

-69 + 53 + 46 + (-94) + (-14) + 78

= [-69 + (-94) + (-14)] + 53 + 46 + 78

= -177 + 53 + 46 + 78

= -124 + 46 + 78

= -124 + 124

= 0

Học tốt!!!

c) Ta có: \(33\cdot55+33\cdot67+45\cdot33+67\cdot67\)

\(=33\left(55+45\right)+67\left(33+67\right)\)

\(=33\cdot100+67\cdot100\)

\(=100\cdot100=10000\)

a,(567-46)-(54+567)

=567-46+54-567

=567.(46+54)

=567.100

=56700

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