87
2. (910 : 7) + (10 * 19) =
3203. (512 + 88) –(300 : 20 ) = 585
4. (29* 30 ) + (84 : 12 ) = 877
№5 с. 69
1. 50* ( 8 - 6: 2 ) = 250
2. 50* ( (8 – 6 ) : 2 ) = 50
3. 72 – 48 : ( 12 * 4 ) = 71
4. ( 72 –48 ) : 12 * 4 = 8
5. 360 : ( 9 – 2 * 3) = 120
6.(360 : 9 – 2 )* 3 = 114