Explicație pas cu pas:
a) 25 + 6 x 8 = 25 + 48 = 73
b) 42:7 + 72:8 = 6 + 9 = 15
c) 45 + 32:4 - 25 = 45 + 8 - 25 = 28
d) 25 +81:9 x 5 = 25 + 9 × 5 = 25 + 45 = 70
e) 64:8x4+53 = 8 × 4 + 53 = 32 + 53 = 85
f) 36 - 6 x 6 + 12:3+ 63 : 7 = 36 - 36 + 4 + 63 : 7 = 4 + 9 = 13
g) 100 - 5x10 + 32:8 +5+4:4 = 100 - 50 + 4 + 5 + 1 = 60
h) 8 x 6 - 28:4+ 3x3x3-9x1 = 48 - 7 + 27 - 9 = 59
1) 2 x 8 + 4 x 4 + 3x6 - 48:8 +6x7 = 16 + 16 + 18 - 6 + 42 = 86
1) 7x7 + 6 x 6 - 5x5 - 4x4 - 3x3 = 49 + 36 - 25 - 16 - 9 = 35
