Răspuns :

Răspuns:

1. 54+28=82

2.20+45+327=329

3.211+24+40=275

4.116+24=140

5.686-30=658

6.32-18+328=342

7.555-50-18=487

8.840-18-21=801

9.111+50-25=136

Daniel201793id

Explicație pas cu pas:

401-347+7×4=

401-347+28=

54+28=

82

2×10+5×9+327=

20+45+327=

65+327=

392

211+6×4+8×5=

211+24+40=

235+40=

275

471-355+8×3=

471-355+24=

116+24=

140

587+99-6×5=

587+99-30=

686-30=

656

8×4-2×9+328=

32-18+328=

14+328=

342

555-5×10-3×6=

555-50-18=

505-18=

487

840-2×9-3×7=

840-18-21=

822-21=

801

111+10×5-5×5=

111+50-25=

161-25=

136