Math Mammoth Place Value 1 teaches students two-digit numbers, or place value with tens and ones.
The initial lessons that introduce tens and ones use a 100-bead abacus extensively. The abacus is not the only model used in the book. We also use a visual model of blocks where ten of them "snap" together to a stick.
Then, the book also uses the 100-chart and number lines.
Place Value 1 also has an introductory lesson on regrouping. The two lessons in the end, about graphs and money, are included as real-life applications of two-digit numbers.
This worktext is suitable for first grade mathematics studies. Full answers are appended.
Math Mammoth Place Value 2 continues the study of place value with 3-digit numbers.
