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a, 4524 - ( 864 - 999 ) - ( 36 + 3999 )
b, ( 1456 + 23 ) - 1456
c, ( 116 + 124 ) - ( 215 - 116 - 124 )
a ) ( 1456 + 323 ) - 1456
= 1456 + 323 - 1456
= ( 1456 - 1456 ) + 323 = 323
b ) ( - 1999 ) - ( - 234 - 1999)
= - 1999 + 234 + 1999
= ( - 1999 + 1999 ) + 234 = 0 + 234 = 234
a.(1456+23)-1456
=1456+23-1456
=(1456-1456)+23
=23
b.(-1999)-(-234-1999)
=-1999-(-234)+1999
=(-1999+1999)-(-234)
=-(-234)
=234
c.(116+124)+(215-116-124)
=116+124+215-116-124
=(166-166)+(124-124)+215
=215
d.(435-167-89)-(435-89)
=435-167-89-435+89
=(435-435)-(89-89)-167
=-167
k for more
#hungB
a) = 1456 + 23 - 1456
= ( 1456 - 1456 ) + 23
= 0 + 23
= 23
b) = ( -1999 ) + 234 + 1999
= ( -1999 + 1999 ) + 234
= 0 + 234
= 234
c) = 116 + 124 + 215 - 116 - 124
= ( 116 - 116 ) + ( 124 - 124 ) + 215
= 0 + 0 + 215
= 215
d) = 435 - 167 - 89 - 435 + 89
= ( 435 - 435 ) + ( -89 + 89 ) - 167
= 0 + 0 - 167
= -167
a) 4524-(864-999)-(36+3999)
= 4524-(-135)-4035
= 4659-4035
= 624
b) 1000-(137+572)+(263-291)
= 1000-709+(-28)
= 291+(-28)
= 263
c) -329+(15-101)-(25-440)
= (-329)+(-86)-(-415)
= (-415)-(-415)
= 0
tick nha
1. 324 + [ 112 - ( 112 + 324 ) ]
= 324 + ( 112 - 436)
= 324 + ( - 324 )
= 0
2. ( - 59 + 71 ) - ( - 83 - 59 )
= 12 - ( - 412 )
= 424
3. - 257 - [ ( - 257 + 156 ) - 56 ]
= - 257 - ( - 101 - 56 )
= - 257 - ( - 157 )
= - 100
`324 + [ 112 - ( 112 + 324 ) ]`
`= 324 + ( 112 - 436)`
`= 324 + ( - 324 )`
`=324-324`
`=0`
________________________________
` - 257 - [ ( - 257 + 156 ) - 56 ]`
`= - 257 - ( - 101 - 56 )`
`= - 257 - ( - 157 )`
`-257 + 157`
`= - 100`
_________________________
`-329 + (15-101)-(25-440)`
`=-329 + 15 - 101 - 25 + 440`
`=(-329 - 101) + (15-25)+440`
`=-430 + (-10)+440`
`=-430 - 10+440`
`=-440 +440`
`=0`
_____________________________________
`4524-(864 - 999) - (36 + 999)`
`=4524 - 864 + 999 - 36 - 999`
`=(4524 - 864 )+(999-999)-36`
`=3660 + 9 -36`
`=3624`