Easy Matchstick Puzzles

#425: Fix 3+1=6 easy #429: Fix 9-5=1 easy #430: Fix 6+3=11 easy #431: Fix 5-1=2 easy #437: Fix 4+3=9 easy #441: Fix 1+1=3 easy #446: Fix 5+4=6 easy #447: Fix 4-5=1 easy #450: Fix 2+7=10 easy #452: Fix 2+6=9 easy #455: Fix 3+9=3 easy #456: Fix 4-2=3 easy #460: Fix 9+2=2 easy #461: Fix 2+9=2 easy #463: Fix 0-4=5 easy #469: Fix 6+1=10 easy #472: Fix 6+3=3 easy #473: Fix 6+7=7 easy #481: Fix 7-2=4 easy #483: Fix 9-0=3 easy #486: Fix 5-2=5 easy #488: Fix 3+1=3 easy #489: Fix 6-6=9 easy #491: Fix 0+1=10 easy #493: Fix 8+1=6 easy #494: Fix 7-5=3 easy #495: Fix 3+9=9 easy #496: Fix 0+2=8 easy #499: Fix 9+6=9 easy #500: Fix 4+9=10 easy #502: Fix 3+7=9 easy #505: Fix 9+3=11 easy #510: Fix 5-6=5 easy #511: Fix 0-2=7 easy #515: Fix 9+1=1 easy #516: Fix 0+2=11 easy #521: Fix 1+6=10 easy #524: Fix 9+7=10 easy #527: Fix 8+8=10 easy #533: Fix 7-3=2 easy #534: Fix 3+9=11 easy #535: Fix 9-6=9 easy #537: Fix 1+0=10 easy #541: Fix 8-6=3 easy #545: Fix 1+8=0 easy #546: Fix 0-5=4 easy #550: Fix 2+0=8 easy #559: Fix 9+7=7 easy