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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

MoreToMath 1-2 Core Set

Checking

45210 MoreToMath 1-2 Core Set

512 pieces in 47 part and color combinations, plus 2 minifigures.

LEGO counts 521 pieces. This inventory comes from a separate parts catalog and lists 520, including the 8 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Red 77 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×32
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×11
  • Brick 1 x 3 Red Part 3622 Element 362221 ×4
  • Brick 1 x 4 Red Part 3010 Element 301021 ×10
  • Plant, Flower 2 x 2 - Round [Solid Stud] Red Part 98262 Element 6000020 ×20

Lime 75 pieces

  • Brick 1 x 1 Lime Part 3005 Element 4220634 or 4122446 ×32
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×21
  • Brick 1 x 3 Lime Part 3622 Element 4166093 or 4122448 ×10
  • Brick 1 x 6 Lime Part 3009 Element 4537919 or 4271446 ×6
  • Brick 2 x 2 Lime Part 3003 Element 4220632 or 4122451 ×6

Orange 64 pieces

  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 ×22
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×11
  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×2
  • Cone 1 x 1 [Top Groove] Orange Part 59900 Element 4518029 ×22
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×5
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×2

White 54 pieces

  • Brick 1 x 1 with Simple Black Eye with White Pupil Print White Part 3005pr0003 Element 4569080 ×5
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×11
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×4
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×32

Green 53 pieces

  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×11
  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×6
  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×32
  • Plate 2 x 3 Green Part 3021 Element 302128 ×4

Medium Blue 47 pieces

  • Brick 1 x 1 Medium Blue Part 3005 Element 4179830 or 4165452 ×22
  • Brick 1 x 2 Medium Blue Part 3004 Element 4629786 or 4179833 ×21
  • Brick 1 x 3 Medium Blue Part 3622 Element 6014087 or 6000881 ×4

Dark Purple 43 pieces

  • Brick 1 x 1 Dark Purple Part 3005 Element 6084028 or 4640738 ×22
  • Brick 1 x 2 Dark Purple Part 3004 Element 6104154 or 4640739 ×21

Tan 35 pieces

  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×12
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×11
  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×6
  • Brick 2 x 4 Tan Part 3001 Element 4114319 or 300105 ×6

Bright Green 20 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×20

Reddish Brown 18 pieces

  • Barrel Half Large with Axle Hole Reddish Brown Part 64951 Element 4541875 ×2
  • Brick 1 x 1 Reddish Brown Part 3005 Element 4211242 ×12
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×2
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×2

Yellow 12 pieces

  • Plate 1 x 10 Yellow Part 4477 Element 6079138 or 6078095 ×6
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×6

Black 8 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×2
  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×2
  • Equipment Magnifying Glass with Thick Frame, Solid Handle, Trans-Clear Lens Pattern Black Part 10830pat0001 Element 6012466 ×2

Light Bluish Gray 6 pieces

  • Brick Sloped 45° 2 x 2 with Red Cash Register and '+15' Print Light Bluish Gray Part 3039pr0062 Element 4622060 ×2
  • Plate 8 x 8 Light Bluish Gray Part 41539 Element 4166618 ×4

Minifigures 2 figures

  • Max Minifigure, checked as a whole figure ×1
  • Mia Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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