Question

[nguyễn tuấn anh]

bài 1: tính

a, (1267-196)-(267+304)

b, 321+{-15+[30+(-321)]}

c, 19.25.25.81+100

Answer 1

[😀😀😀 Ý kiến j ak 😀😀😀]

a)=500

Answer 2

[I am➻Minh]

a, (1267-196)-(267+304)

= 1267-196-267-304

= (1267-267)-(196+304)

= 1000-500

 = 500

b, 321+{-15+[30+(-321)]}

=321+{-15+30-321}

=321-15+30-321

=(321-321)+(-15+30)

=0+15

=15

c, \(19\cdot25\cdot25\cdot81+100\)

\(=961875+100\)

\(=961975\)