Two-Digit Multiplication Box
A school store multiplies exercise-book packs using box, column, distributive, and lattice methods.
Use a box so no partial product disappears.
The store receives 79 boxes with 58 exercise books in each. Use a multiplication box to check the total before the receipt is written.
Two-Digit Multiplication Box illustration
A school store multiplies exercise-book packs using box, column, distributive, and lattice methods.
Multiply 79 x 58.
- Break 79 into 70 and 9, and 58 into 50 and 8.
- Add 3,500 + 560 + 450 + 72 to get 4,582.
Struggle support
Rescue lab
Notebook boxes before lattice digits
Exercise books are packed in rows and columns before the written method appears.
Draw a 2 by 2 box with tens and ones on the edges.
Arrange notebooks into tens and ones groups.
Use real objects or counters before any written shortcut.
Write the four box products in separate spaces.
Draw the model so each group, part, or place can be seen.
Add the partial products after checking their place values.
Write the equation only after the visual model is stable.
Starting with a rule before identifying what each object represents.
Ask the learner to point to the unit, group, or column in the picture.
Name the unit first, then rebuild the written statement from the model.
Copying digits or symbols without keeping place value or units attached.
Ask which place, unit, or event each number belongs to.
Write labels beside the numbers before simplifying the answer.
Fill each box product, then trace how the totals combine.