9700 : 100 + 36 x 12 = 529
(160 x 5 - 25 x 4) : 4= 175
108 x (23 + 7) = 3240
215 x 86 + 215 x 14 = 21500
3 x 128 - 43 x 128= -5120
a.9700 : 100 + 36 x 12=97 + 432=529
b.(160 x 5 - 25 x 4) : 4=700:4=175
c.108 x (23 + 7)=180 x 30 =5400
d.215 x 86 + 215 x 14= 215(86+14)=215 x 100 = 21500
e.53 x 128 - 43 x 128=128(53-43)=128 x 10 =1280
\(=97+36\times12\)
\(=97+432\)
\(=539\)
\(=(800-100):4\)
\(=8:4\)
\(=2\)
= \(108\times30\)
\(=3240\)
\(18490+3010\)
\(=21500\)
\(=384-5504\)
= -5120
9700 : 100 + 36 x 12
= 97 + 432
= 529
(160 x 5 - 25 x 4) : 4
= 700 : 4
= 175
108 x (23 + 7)
= 108 x 30
= 3240
215 x 86 + 215 x 14
= 215 x ( 86 + 14)
= 215 x 100
= 21500
3 x 128 - 43 x 128
= 128 x ( 53 - 43)
= 128 x 10
= 1280
