building material calculation

LEGO Icons Bouquet of Roses, Flower Build and Display Set 10328

LEGO Creator 3 in 1 Mighty Dinosaurs Model Building Set 31058

LEGO Creator 3 in 1 Flowers in Watering Can Building Toy 31149

LEGO Creator 3 in 1 Mini Convertible Monster Truck Toy 30691

LEGO Minecraft The Armadillo Mine Expedition Toy Figures and Building Playset 21269

LEGO Minecraft The TNT Jungle House Building Set 21275

Magnetic Blocks Mini solid Purple Tin - Gigglescape™

LEGO Icons Succulents Plants and Flowers Set 10309

LEGO Technic Bugatti Bolide Model Car Toy Building Set 42151

LEGO Creator 3 in 1 Space Robot Building Toy with 3 Options, Robot, Spaceship or Robot Dog 31164

Compass and Protractor Set Gray - up&up™: Plastic Measuring Tools for Math and Drawing, Kids Ruler, 6" Range

Magnetic Blocks Medium transparent Blue Tin - Gigglescape™

LEGO Animal Crossing Stargazing with Celeste Building Toy 77053

Chuckle & Roar Whoa Dough Glow In The Dark - Air Dry Clay

Octopus Balance Scale - Gigglescape™: Preschool Math Kit, Educational Toy, Fine Motor Skills, Numbers, Shapes, Colors

LEGO Super Mario Kart Yoshi Bike Building Toy 72031

Learning Resources Gears! Gears! Gears! Deluxe Building Set - 100pc: Science Educational Plastic Toy for Kids with Instructions

LEGO Star Wars PloKoon's Jedi Starfighter Microfighter 75400

LEGO Speed Champions Lamborghini Revuelto & Huracán STO 77238

LEGO Santa's Sleigh Christmas Toy Set with Reindeer & Santa Figurine 40499

LEGO Disney Moana's Island Fun Building Toy Princess Playset 43260

LEGO Technic Ford Bronco SUV Kids Toy Car Building Set 42213

Magnetic Tiles Red Tin - Gigglescape™: Educational Building Set, Enhances Creativity & Fine Motor Skills, 20 Pieces

Magnetic Tiles Yellow Tin - Gigglescape™: Educational Toy for Creativity & Fine Motor Skills, 20 Pieces Set