Question

(2p) 3. Uniţi prin săgeţi fiecare enunţ din coloana A cu rezultatul
corespunzător din coloana B.
A.
a) 1,1×2,5+1,1^2:11
b) 1,1×(2,5+1,1^2):11
c) (1,1×2,5+1,1^2):11
а) (1,1^2×2,5+1,1^2):11

В.
1) 0,371
2) 0,37
3) 0,36
4) 2,86
5) 0,385

DAU COROANA :)​

Answer 1

Explicație pas cu pas:

$\bf 1.1 \times 2.5 + {1.1}^{2} \div 11 = \\ \\ \bf 1.1 \times 2.5 + 1.21 \div 11 = \\ \\ \bf 2.75 + 1.21 \div 11 = \\ \\ \bf 2.75 + 0.11 = \red{\boxed{\bf 2.86}}$

$\space$

$\bf 1.1 \times (2.5 + {1.1}^{2}) \div 11 = \\ \\ \bf 1.1 \times (2.5 + 1.21) \div 11 = \\ \\ \bf 1.1 \times 3.71 \div 11 = \\ \\ \bf 4.081 \div 11 = \blue{\boxed{\bf 0.371}}$

$\space$

$\bf (1.1 \times 2.5 + {1.1}^{2}) \div 11 = \\ \\ \bf (1.1 \times 2.5 + 1.21) \div 11 = \\ \\ \bf (2.75 + 1.21) \div 11 = \\ \\ \bf 3.96 \div 11 = \green{\boxed{\bf 0.36}}$

$\space$

$\bf ({1.1}^{2} \times 2.5 + {1.1}^{2}) \div 11 = \\ \\ \bf (1.21 \times 2.5 + 1.21) \div 11 = \\ \\ \bf (3.025 + 1.21) \div 11 = \\ \\ \bf 4.235 \div 11 = \purple{\boxed{\bf 0.385}}$