Question

Calculati 2X7; 2X8; 3X7; 3X8; 4X7; 4X8; 5X7; 5X8; 6X7; 6X8; 7X7; 7X8; 8X8; 8X9; 9X9; 9X10; 10X10 Rezolvati exercitiul 3X3+5X2+6X7 AFLA NR NECUNOSCUT 9X4:a=6 6X4:b=8 c:5X4=8 dX3:6=4 m:(2X4)=14:2 n:(3X3)=6X4 (13+o):8=7 33-pX4=13 Ofer coroana

Answer 1

2x7=14
2x8=16
3x7=21
3x8=24
4x7=28
5x7=35
5x8=40
6x7=42
6x8=48
7x7=49
7x8=56
8x8=64
8x9=72
9x9=81
9x10=90
10x10=100
3x3+5x2+6x7=9+10+42=61
9x4:a=6
36:a=6
a=6
6x4:b=8
24:b=8
b=3
c:5x4=8
c:20=8
c=160
dx3:6=4
dx3=24
d=8
m:8=7
m=56
n:9=24
x= 216
13+o=56
o=43
33-px4=13
4p=20
p=5

Answer 2

1. 2x7=14
2. 2x8=16
3. 3x7=21
4. 3x8=24
5. 4x7=28
6. 4x8=32
7. 5x8=40
8. 6x7=42
7. 6x8=48
8. 7x7=49
9. 7x8=56
10. 8x8=64
11. 8x9=72
12. 9x9=81
13. 10x10=100
 
  2.Rezolvati exercitiul:

3x3+5x2+6x2=
=9+10+12
=31
 
  3.Afla numerele necunoscute:

9x4:a=6
a=9x4:6
a=6
9x4:6=6

6x4:b=8
b=6x4:8
b=3
6x4:3=8

c:5x4=8
c=20=8
c=160

d X 3:6=4
d=dX3=24
d=8
8x3:6=4

m:(2x4)=14:2
m=m:8=7
m=56
56:(2x4)=14:2

n:9=24

13+0=56
o=43

33-px4=13

4p=20
p=5.