Desktop calculator CASIO MJ-120D PLUS — basic 12-digit, battery/solar, 35 keys, tax & square root, black

The Casio MJ-120D Plus Basic Black is a desktop calculator with a 12-digit extra-large LCD, dual power (solar plus battery), and a compact design suitable for home and office use. It provides basic and advanced arithmetic functions, tax calculation, and a review/check feature that helps verify long entries. The calculator is lightweight and has practical keys including a double-zero key and a backspace for quick corrections.

Advantages

The MJ-120D Plus offers a clear, extra-large 12-digit display for easy reading, two-way power for reliable operation in varied lighting conditions, and a 300-step check function to review long calculations. Durable plastic keys with key rollover and a correct key improve input accuracy, while functions such as GT memory, percentage, square root and markup cover common accounting needs.

Suitable for

• Everyday arithmetic and bookkeeping tasks
• Tax calculations for small businesses and retail
• Office desks, home workspaces, and study tables

Key specifications

• Display: 12-digit extra-large LCD
• Power: Two-way (solar + 1x LR44 battery)
• Dimensions (H x W x L): 28.6 x 126.5 x 148 mm
• Weight: approx. 140 g
• Check capacity: 300 steps with review and auto-review
• Memory: 3-key memory and GT memory
• Keys: Plastic keys, double-zero key, backspace, correct key, key rollover
• Functions: Tax calculation, percentage, square root, markup, local digit separators

How to use

Place the calculator on a flat surface and ensure sufficient light for solar operation or install a LR44 battery to enable two-way power. Enter numbers and operations using the plastic keys; use the double-zero key for quick large-value input and the backspace or correct key to amend entries. Use the tax function to apply preset tax rates and the GT memory to accumulate totals. Use the review and recheck functions to step through up to 300 calculation entries for verification.

Recommendations

For reliable long-term use, avoid exposing the calculator to excessive heat or moisture and replace the LR44 battery when display dimming occurs. Use the review and auto-review functions regularly to verify multi-step calculations before recording final totals.