d

D

d

các bạn ơi giúp nhanh nha mình đang cần rất gấp

d

D

D.55551

109+502=611

duyet nha

109 + 502 = 611  Bạn k cho mình nha!*****

109 + 502 = 611

Toán lớp 3 mà bn ?????

602 mà , dễ như húp văn vhaso

bang 602 nha

100 + 502 = 602

\(198+789+502+34\)

\(=\left(198+502\right)+\left(789+34\right)\)

\(=700+823\)

\(=1523\)

\(198+789+502+34\)

\(=\left(198+502\right)+\left(766+34\right)-23\)

\(=700+800-23\)

\(=1500-23\)

\(=1477\)

\(50^2-18^2+32^2+100\cdot32\)

\(=\left(32^2-18^2\right)+\left(50^2+100\cdot32\right)\)

\(=\left(32+18\right)\left(32-18\right)+50\cdot\left(50+2\cdot32\right)\)

\(=50\cdot14+50\cdot114\)

\(=50\cdot128\)

\(=6400\)

\(=\dfrac{62500}{502:\left[112-52+115\right]}=\dfrac{62500}{502:175}\simeq21787,84861\)

\(62500:\left\{502:\left[112-\left(52-23.5\right)\right]\right\}\\ =62500:\left\{502:\left[112-\left(52-115\right)\right]\right\}\\ =62500:\left\{502:\left[112-\left(-63\right)\right]\right\}\\ =62500:\left\{502:175\right\}\\ =62500:\dfrac{502}{175}\\ =21787,84861\)

\(62500:\left\{502:\left[112-\left(52-23.5\right)\right]\right\}\)

\(=62500:\left\{502:\left[112-\left(52-115\right)\right]\right\}\)

\(=62500:\left\{502:\left[112-\left(-63\right)\right]\right\}\)

\(=62500:\left(502:175\right)\)

\(=62500:\dfrac{502}{175}\sim21788\)