Question

va rog ma puteti ajuta la ex astea mulțumesc mult.

Answer 1

2)a)402+127=529
529x43=22747
B)402-127=275
275x43=11825
C)22747+11825=34572
34572+43=34615

3)a=(32+63)+19
A=95+19
A=114
B=(42+21):9+32
B=63:9+32
B=7+32
B=39
Axb=114x39=4446

4)a)4x19=76
4x20=80
{77,78,79}
B)11x125=1375
11x126=1386
{1376,1377,1378,1379,1380,1381,1382,1383,1384,1385}

5)35x(20+20-20-20)+1=35x0+1=0+1=1
459x(15+15-15+1)=459x16=7344

Answer 2

ex.2 a)402+127=925
925×43=39775

b)402-127=275
275×43=11285

c)925 +275=1200
1200+43=1243


ex.3
a=(4×8+9×7)+19
a=(32+63) +19
a=95+19
a=114


b) (7×6+21)÷9+32
=(42+21)÷9+32
=63÷9+32



ex. 4
4×19=76 si 4×20=80
77,78,79

nu stiu la b)

ex.5
a) 1

b)933

Sper ca te-am ajutat