Salut! ♡
1. (846-392)+(173+97)-690
=454 + 270 -690
=724-690
= 34
2. (1 912 + 4 855) - (8 106 - 7 645) + 3 694
= 6 767 - 461 + 3 694
= 6 306 + 3 694
= 10 000
3. 24 144 - (6 442 + 658) + (18 544 - 15 319) - 20 269
= 24 144 - 7 100 + 3 225
= 17 044 + 3 225
= 20 269
4. (21 618 - 17 549) + (10 502-9408) + (13 580 - 12 645)
= 4 069 + 1 094 + 935
= 5 163 + 935
= 6 098
5. 600 000 + (55 746 +24 286) - (79 433 - 47 973)
= 600 000 + 80 032 - 31 460
= 600 000 + 48 572
= 648 572