Dr. Kat Math Practice

Borrow to Simplify (Decimals)

Lesson Page 2, Section 9

What you'll work on

Subtract decimal numbers accurately by aligning decimal points and borrowing from the next column when the top digit is smaller than the bottom digit.

Big Idea for this lesson

$A painted illustration of two vertical bead-towers of small polished round beads aligned against a central wooden post — one bead is shown mid-air being passed downward from a high position in the right tower into an empty notch lower in the same column, suggesting transfer between rows. Painterly soft edges, warm amber lamplight, classical-abacus aesthetic, NO numbers or text or markings of any kind.$

Subtract carefully by aligning decimals and borrowing when needed. Borrowing is taking 1 from the number next door — you're regrouping 10 of the current unit from the column to the left. The decimal point never moves; it's just a marker between whole and fractional parts.

6 questions · pace yourself · explanations on every answer

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