Răspuns :
Răspuns:
10x(3+6)=10 x 9=90
10x(3+6)=10x3+10x6=30+60=90
10x(12+8)=10x20=200
10x(12+8)=10x12+10x8=120+80=200
(3+5)x10=8x10=80
(3+5)x10=3x10+5x10=30+50=80
(8-5)x10=3x10=30
(8-5)x10=8x10-5x10=80-50=30
(34-26)x10=8x10=80
(34-26)x10=34x10-26x10=340-260=80
(9-7)x100=2x100=200
(9-7)x100=9x100-7x100=900-700=200
(24+39)x10=63x10=630
(24+39)x10=24x10+39x10=240+390630
(92-88)x100=4x100=400
(92-88)x100=92x100-88x100=9200-8800=400
Explicație pas cu pas:
Răspuns:
1. 10 (3 + 6)
10 × 9
90
10 × 3 + 10 × 6
30 + 60
90
2. 10 × (12+8)
10×20
200
10×12+10×8
120+80
200
3. (3+5)×10
8×10
80
3×10+5×10
30+50
80
4. (8-5)×10
3×10
30
8×10-5×10
80-50
30
5. (34-26)×10
8×10
80
34×10-26×10
340-260
80
6. (9-7)×100
2×100
200
9×100-7×100
900-700
200
7. (24+39)×10
63×10
630
24×10+39×10
240+390
630
8. (92-88)×100
4×100
400
92×100-88×100
9200-8800
400
Explicație pas cu pas:
Coroana?