Question

Calculează, grupând convenabil numerele: a) 90 + 30 + 10 + 70 = b) 6 + 19 + 13 + 14 + 1 + 7 = c) 97 +45 + 14 + 3+ 6 + 55 = d) 169 +58 +60 +42 +231 + 40 =​

Answer 1

Răspuns:

a) 90+30+10+70=90+10+70+30=100+100=200

b) 6+19+13+14+1+7=6+14+19+1+13+7=20+20+20=60

c) 97+45+14+3+6+55=97+3+45+55+14+6=100+100+20=220

d) 169+58+60+42+231+40=169+231+58+42+60+40=400+100+100=600

Sper ca te-am ajutat!

Answer 2

a)

$90 + 30 + 10 + 70 = 120 + 80 = 200$

b)

$6 + 19 + 13 + 14 + 1 + 7 = 25 + 27 + 8 = 52 + 8 = 60$

c)

$97 + 45 + 14 + 3 + 6 + 55 = 142 + 17 + 61 = 159 + 61 = 220$

d)

$169 + 58 + 60 + 42 + 231 + 40 = 227 + 102 + 271 = 329 + 271 = 600$