Question

1. Calculează: a) 286 + 693- 147 673-196 +238 3 182 +4 563 - 1677 b) 1 x 2 x 5 7 x 1x 9 63:7:3:3 c) 4x2x1 1 x 8 x 0 56:7 x 2:4​

Answer 1

Răspuns:

a) 979-147 673-196+2 383 182+4563-1677=

= -146 694-196+2 387 745-1677=

= -146 890-1677+2 387 745=

= -148 567+2 387 745= 2 239 178

b) 114×963:7:3:3=

= 109.782:7:3:3=

= 15683,14:3:3= 1742,57

c) 8×88×56÷7×2:4=

= 704×56:7×2:4=

= 39.424:7×2:4=

= 5632×2:4=

= 11,264:4=

= 2816