Missing Numbers

Worksheet Description

This worksheet features an array of abacuses with corresponding mathematical equations that are missing one or more numbers. Each abacus has beads on the tens (T) and ones (O) rods, representing a two-digit number. An example provided shows a completed equation with the abacus representing the number 20, the operation subtract 5, resulting in the number 25. Students are tasked with reading the number on each abacus and completing the missing numbers in the equations provided to match the visual representation.

The worksheet is designed to teach students how to interpret numbers represented on an abacus and to use those numbers to complete arithmetic equations. It emphasizes the connection between visual representation of quantities and their numerical equivalents. By completing this activity, students practice their subtraction skills and enhance their ability to translate between different forms of numerical representation. This worksheet also helps to reinforce the understanding of place value and the fundamental operations of arithmetic.