a) =249 - 24==225
b)3822:21=182
c) 2023-1594=429
d)2205:15=147
e) (125.8).(5.2.41)=1000.410=410000
g)4.25.36.50=180000
h) (25.4).(7.10)=100.70=7000
i)8.250.13=26000
a)249-(75-51)
=249-24
=225
b) (4200-378):21
=4200:21-378:21
=200-18
=182
e) 5.125.2.41.8
=(5.2).(125.8).41
=10.1000.41
=10000.41
=410000
h) 25.7.10.4
=(25.4).7.10
=100.7.10
=700.10
=7000
a)249-(75-51)
=249
b)(4200-378):21
=3822:21=182
c)2023-(34+1560)
=2023-1594=429
d)(1950+255):15
=2205:15=147
e)5.125.2.41.8
=(5.2).(125.8).41
=10.1000.41
=10000.41=410000