TamilGenius Lab · tamilgeniuslab.com
தமிழ் ஜீனியஸ் லேப்
Carry & Borrow Operations
Carry & Borrow Operations
Course: Abacus for Children — Level 3
4 pages of progressive carry/borrow operations from two-digit to three-digit cascading. 40 problems.
Abacus Progress Pack — Carry and Borrow Operations
40 problems across 4 pages with progressive difficulty. From simple two-digit carries to three-digit cascading operations.
Page 1 of 4 — Two-Digit + Single-Digit with Carry
When the ones rod overflows (sum of ones digits is 10 or more), carry 1 to the tens rod.
Page 2 of 4 — Two-Digit + Two-Digit with Carry
Both ones and tens columns may carry. Work right to left: ones rod first, then tens rod.
Page 3 of 4 — Subtraction with Borrow
When the ones rod does not have enough, borrow from the tens rod: remove 1 tens bead and add 10 to the ones rod.
Page 4 of 4 — Three-Digit Cascading Operations
Carries and borrows may cascade across multiple rods. Work right to left. Use the working space to track intermediate rod states.
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Hundreds rod
Tens rod
Ones rod
Score
36+ = Excellent · 28-35 = Good · below 28 = Review complement drills first
Part of these learning packs
These packs include this resource alongside other printables, tools, and study guides — curated for a specific goal. View all packs →
TamilGenius Lab · tamilgeniuslab.com · Free Tamil-first education for every child
This is a premium resource. Print unlimited copies for personal and classroom use.