Урок 21-30 - Урок 21 (Стор. 78-82)

10. 23 + 50 - 0
32 : (8 • 4)
0 • (50 - 37) + 83
50 - (57 - 42 : 6)
(13 - 10) : (20 - 19)
(32 - 24) • (25 - 24)


23 + 50 - 0 = 73 - 0 = 73
32 : (8 • 4) = 32 : 32 = 1
0 • (50 - 37) + 83 = 0 • 13 + 83 = 0 + 83 = 83
50 - (57 - 42 : 6) = 50 - (57 - 7) = 50 - 50 = 0
(13 - 10) : (20 - 19) = 3 : 1 = 3
(32 - 24) • (25 - 24) = 8 • 1 = 8