Question

Wykonaj działania
a) (2+3) × (4-1), b) 2×4 - 3× (1-4), c) 5× (2-3) + 3×4, d) 2+4 × (2-5) - (-3) × 2, e) 4-2 × (2+1) +3, f) 3+4 × (6-2) +8, g) 2× (5-1) : (4-2), h) 6× (7+13) :(39-42)

Answer 1

(2+3)x(4-1)=5x3=15
2x4-3x(1-4)=8-3x(-3)=8+9=17
5x(2-3)+3x4=5x(-1)+12=-5+12=7
2+4x(2-5)-(-3)x2=2+4x(-3)-(-6)=2+(-12)-(-6)=-10-(-6)=-4
4-2x(2+1)+3=4-2x3+3=4-6+3=1
3+4x(6-2)+8=3+4x4+8=3+16+8=27
2x(5-1):(4-2)=2x4:2=8:2=4
6x(7+13):(39-42)=6x20:(-3)=120:(-3)=-40