(1) 28×2+84=56+84
=140
(2) 36+69×4
=36+276
=312
(3) 9÷1-8
=9-8
=1
(4) 484÷(3+19 )
= 484÷22
=22
(5) 8×(52÷26)
= 8×2
=16
(6)96÷〔(12+4)×2〕
=96÷〔16×2〕
=96÷32
=3
(7)96÷(12+4)×2
=96÷16×2
=6×2
=12
(1) 28×2+84=56+84
=140
(2) 36+69×4
=36+276
=312
(3) 9÷1-8
=9-8
=1
(4) 484÷(3+19 )
= 484÷22
=22
(5) 8×(52÷26)
= 8×2
=16
(6)96÷〔(12+4)×2〕
=96÷〔16×2〕
=96÷32
=3
(7)96÷(12+4)×2
=96÷16×2
=6×2
=12