Can You Crack The Code

A foundational multi-day math sequence developing skip counting fluency by 5s and 10s through hands-on grouping, visual hundred-chart patterns, coin counting with nickels and dimes, and cumulative mastery checks.

A culminating evaluation lesson assessing students' mastery of finding 10 more, 10 less, 100 more, and 100 less. Students demonstrate mental math fluency, chart navigation, and place value reasoning.

An expanded 8-page printable flashcard set with 48 picture-supported cards featuring numbers 1–20 (plus 0, 30, 50, and 100) with enlarged bold red numerals, base-ten models, ten-frames, and tally marks, alongside 2D shapes, 3D solids, and core and extended color identification cards.

A progressive multi-digit arithmetic sequence guiding students through single-digit, double-digit, and three-digit addition and subtraction with dedicated worksheets and answer keys.

A high-energy, two-player partner math competition where students face off across four addition arenas: counting dots, hopping on number lines, grouping base-ten blocks, and solving traditional two-digit sums.

A black-and-white, printer-friendly 2-page teacher answer key and scoring guide for the Tens and Hundreds Test. Uses high-contrast black borders, clean white cards, bold boxed solutions, and clear rubrics for photocopying.

A comprehensive two-day mathematics sequence for early elementary students focusing on comparing two-digit numbers. Day 1 emphasizes concrete, hands-on place value modeling with base-ten manipulatives and cut-out symbols, while Day 2 cements conceptual mastery through visual representations, structured paper-based practice, and reasoning tasks.

Students compare patterns to determine whether sequences increase by fives or tens, solve mixed real-world group counting problems, and complete a cumulative progress check.

A black-and-white, printer-friendly 2-page summative test covering standards 1.NBT.5 and 2.NBT.8. Optimized with pure white backgrounds, crisp high-contrast black borders, clean line art for base-ten rods and hundred-flats, and ink-efficient answer boxes.

A comprehensive printable math sequence featuring two differentiated supermarket showdown activities. Students apply whole-number addition and subtraction budgeting in one set and cashier-level money calculation and change-making in the other.

Students explore skip counting by fives up to 100 using handprints, tally mark bundles, nickels, and observing the alternating zero-and-five digit pattern in the ones place.

Teacher and student referee answer key containing complete step-by-step solutions for all duel rounds, visual models, and a referee error guide.