$$\left[2\times6\right]+\left[5\times1\right]$$

$$\left\{\left(2+1\right)\times6\right\}+5$$

$$\left\{\left(1+5\right)\times6\right\}-2$$

$$\left\{\left(1-2\right)+5\right\}\times6$$

$$\left(8\times4\right)-\left(8+6\right)$$

$$8+6+8+4$$

$$\left(6\times4\right)\div\left(8\div8\right)$$

$$\left\{\left(8-4\right)+6\right\}\times4$$

$$\left(6\times3\right)+1+5$$

$$\left(3+1\right)\times5+6$$

$$\left(5\times6\right)-\left(3+1\right)$$

$$\left(3\times5\right)+\left(6\times1\right)$$

$$\left(7+6\right)\times\left(5-1\right)$$

$$\left(-7+1\right)+\left(6\times5\right)$$

$$1+7+6+5$$

$$\left(7-1\right)-\left(6\times5\right)$$

$$\left(3-2\right)\times3\times6$$

$$3\times\left(3+6\right)-2$$

$$\left(6\times3\right)+\left(3\times2\right)$$

$$\left(6\times3\times2\right)-3$$

$$6+8+4+4$$

$$\left(6\times8\right)-\left(4\times4\right)$$

$$\left(6+4\right)\times\left(8\div4\right)$$

$$\left(8+4\right)\times\left(6-4\right)$$

$$\left(8\div2\right)\times\left(1+5\right)$$

$$8\times2+1+5$$

$$8\times5\div2+1$$

ไม่มีข้อใดถูกต้อง

$$\left(1+4\right)\times\left(6+1\right)$$

$$\left(6+4\right)\times\left(1+1\right)$$

$$1\times4\times6\times1$$

ไม่มีข้อใดถูกต้อง

$$4+7+4+5$$

$$\left(7+\left(4-5\right)\right)\times4$$

$$\left(7\times4\right)-\left(5-4\right)$$

$$\left(4\times5\right)+\left(7-4\right)$$