Solve 1+2+3+4+5+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=

$$1+2+3+4+5+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=$$

Evaluate

$$282$$

Solution Steps

Add 1 and 2 to get 3.

$$3+3+4+5+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 3 and 3 to get 6.

$$6+4+5+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 6 and 4 to get 10.

$$10+5+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 10 and 5 to get 15.

$$15+6+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 15 and 6 to get 21.

$$21+7+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 21 and 7 to get 28.

$$28+8-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 28 and 8 to get 36.

$$36-9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Subtract 9 from 36 to get 27.

$$27+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 27 and 10 to get 37.

$$37+11+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 37 and 11 to get 48.

$$48+12+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 48 and 12 to get 60.

$$60+13+14+15+16+17+18+19+20+21+22+23+24$$

Add 60 and 13 to get 73.

$$73+14+15+16+17+18+19+20+21+22+23+24$$

Add 73 and 14 to get 87.

$$87+15+16+17+18+19+20+21+22+23+24$$

Add 87 and 15 to get 102.

$$102+16+17+18+19+20+21+22+23+24$$

Add 102 and 16 to get 118.

$$118+17+18+19+20+21+22+23+24$$

Add 118 and 17 to get 135.

$$135+18+19+20+21+22+23+24$$

Add 135 and 18 to get 153.

$$153+19+20+21+22+23+24$$

Add 153 and 19 to get 172.

$$172+20+21+22+23+24$$

Add 172 and 20 to get 192.

$$192+21+22+23+24$$

Add 192 and 21 to get 213.

$$213+22+23+24$$

Add 213 and 22 to get 235.

$$235+23+24$$

Add 235 and 23 to get 258.

$$258+24$$

Add 258 and 24 to get 282.

$$282$$

Factor

$$2\times 3\times 47$$