Question

Ordinea efectuari operatiiror si folosirea parantezelor rotude: 1. Verifica egalitatile: 12x3x10-(100+35:5)=50x2+25x4+(309-200-8x7); 136-(9x9+5x6)=450-(320+6x7-3x8) 2. cu cat este mai mare suma decat diferenta numerelor a si b, stiind ca: a=(95+123x4)-(400+9x10); b=30:3:2x5+35:5+109x4-4x100 3. calculeaza: 10x2:(5+5)x196-3x100-9x10= va rog ajutatima

Answer 1

136-(81+30) = 450-(320+42+24)
136-111 = 450-386
25 =  64 => FALS

2.
A=(95+492)-490
A= 587 - 490
A= 90

B= 30:3:2x5+35:5+109x4-4x100
B= 10:2x5+35:5+109x4-400
B= 5x5+7+ 436-400
B= 25+7+36
B = 32+36
B= 68

Suma: 90+68=158
Diferenta: 90-68=22          |=>Suma >( este mai mare decat) Diferenta cu 158-22 = 136

3.
10x2:(5+5)x196-300-90=
20:2x196-300-90=
10x196-300-90=
1960-300-90=
1660-90=
=1570



Sper ca te-am ajutat !!! Coronita?