100 − (5.4^2 − 2.7^1) + 2019^0
= 100 - (5.16 - 2. 7) + 1
= 100 - (80 - 14) + 1
= 100 - 66 + 1
= 34 + 1
= 35

(143.43 − 99.43 − 43^2) : 43 + 1
= 143 - 99 - 43 + 1
= (143 - 43) - (99 - 1)
= 100 - 98
​= 2
 

86.3^3 + 26.3^3 - 23.3^3
= 3^3. (86 + 26 - 23)
= 27. 89
= 2403

69.113 − 27.69 + 69.14 + 31
= 69. (114 - 27 + 14) + 31
= 69. 101 + 31
= 6969 + 31
= 7000

100 − (5.4^2 − 2.7^1) + 2019^0
= 100 - (5.16 - 2. 7) + 1
= 100 - (80 - 14) + 1
= 100 - 66 + 1
= 34 + 1
= 35

(143.43 − 99.43 − 43^2) : 43 + 1
= 143 - 99 - 43 + 1
= (143 - 43) - (99 - 1)
= 100 - 98
​= 2

 86.3^3+26.3^3-23.3^3
=3^3(86+26-23)
=27.89
=178
 69.113-27.69+69.14+31
=69(113-27+14)+31
=69.100+31
=6900+31
=6931
 100-(5.4^2-2.7^1)+2019^0
= 100 - (5.16 - 2. 7) + 1
= 100 - (80 - 14) + 1
= 100 - 66 + 1
= 34 + 1
= 35
 (143.43-99.43-43^2):43+1
= 143 - 99 - 43 + 1
= (143 - 43) - (99 - 1)
= 100 - 98
​= 2






 

86.3^3+26.3^3-23.3^3
=3^3(86+26-23)
=27.89
=178 
69.113-27.69+69.14+31
=69(113-27+14)+31
=69.100+31
=6900+31
=6931
 100-(5.4^2-2.7^1)+2019^0
= 100 - (5.16 - 2. 7) + 1
= 100 - (80 - 14) + 1
= 100 - 66 + 1
= 34 + 1
= 35
 (143.43-99.43-43^2):43+1
= 143 - 99 - 43 + 1
= (143 - 43) - (99 - 1)
= 100 - 98
​= 2