1. 27 : (-9) + 6 × 5 =

Jawaban:

1. 27 : (-9) + 6 × 5 =

-3+30

=27

2. 24 × (240 : ((-36 + 40) × (-23 + 17)) =

24×(240:4)×(-6)

24×960×(-6)

=-138.240

3. 420 : (-7) + 70 – 30 × (-8) + 15

-60+70+240+15

=265

4. 840 : -20 = -42

5. 29 × -197 = -5.713

Jawaban:

1. [ 27 : (-9) ] + [ 6 x 5 ] = -3 + 30 = 27

2. 24 x ( 240 : ( 4 x ( -6 )) = 24 x ( 240 : ( -24 ))

= 24 x ( -10 ) = – 240

3. ( 420 : ( -7 )) + 70 – ( 30 x ( -8 )) + 15

= ( -60 ) + 70 + 240 + 15

= 265

4. 840 : – 20 = – 42

5. 29 x – 197 = – 5713