Solve (10+10*9+10*9*4+10*3*4*7+10*9*7*2)*2

$$(10+10 \times 9+10 \times 9 \times 4+10 \times 3 \times 4 \times 7+10 \times 9 \times 7 \times 2) \times 2$$

Evaluate

$$5120$$

Solution Steps

Multiply 10 and 9 to get 90. Multiply 10 and 9 to get 90. Multiply 10 and 3 to get 30. Multiply 10 and 9 to get 90.

$$\left(10+90+90\times 4+30\times 4\times 7+90\times 7\times 2\right)\times 2$$

Add 10 and 90 to get 100.

$$\left(100+90\times 4+30\times 4\times 7+90\times 7\times 2\right)\times 2$$

Multiply 90 and 4 to get 360.

$$\left(100+360+30\times 4\times 7+90\times 7\times 2\right)\times 2$$

Add 100 and 360 to get 460.

$$\left(460+30\times 4\times 7+90\times 7\times 2\right)\times 2$$

Multiply 30 and 4 to get 120.

$$\left(460+120\times 7+90\times 7\times 2\right)\times 2$$

Multiply 120 and 7 to get 840.

$$\left(460+840+90\times 7\times 2\right)\times 2$$

Add 460 and 840 to get 1300.

$$\left(1300+90\times 7\times 2\right)\times 2$$

Multiply 90 and 7 to get 630.

$$\left(1300+630\times 2\right)\times 2$$

Multiply 630 and 2 to get 1260.

$$\left(1300+1260\right)\times 2$$

Add 1300 and 1260 to get 2560.

$$2560\times 2$$

Multiply 2560 and 2 to get 5120.

$$5120$$

Factor

$$2^{10}\times 5$$