Question

1. Calculează, folosind adunarea repetată.
ÎNMULȚIREA NUMERELORN
a) 3.17
b) 6.14
c) 5.16
4 • 23
2.15
5. 20
6. 11
3.25
4 • 19​

Answer 1

Răspuns:

a) 3×17= 17+17+17= 34+17 = 51

b) 6×14= 14+14+14+14+14+14 = 28+14+14+14+14 = 42+14+14+14= 56+14+14 = 70+14 = 84

c) 5×16= 16+16+16+16+16 = 32+16+16+16 = 48+16+16 = 64+16 = 80

d) 4×23= 23+23+23+23 = 46+23+23 = 69+23 = 92

e) 2×15= 15+15 = 30

f) 5×20= 20+20+20+20+20 = 40+20+20+20 = 60+20+20 = 80+20=100

g) 6×11= 11+11+11+11+11+11 =22+11+11+11+11 = 33+11+11+11 = 44+11+11 = 55+11 =66

h) 3×25= 25+25+25 = 50+25 = 75

i) 4×19 = 19+19+19+19 = 38+19+19 = 57+19 = 76

Sper ca te-am ajutat :)