Four operations of decimals

Practice 3 items →

The point moves when you multiply or divide by a power of ten; when you multiply two decimals the decimal places add. Students run all four operations, including decimal × decimal and decimal ÷ decimal by making the divisor whole.

Specification · for a parent or teacher
Part no.
decimal-four-operations
Course
Advanced Math 5 · Unit 10
Realm
Foundations
Difficulty
3 of 4 — Grade 6–7 core. Multi-step, first symbolic work.
Qty
3 items

Part no. is the node's id; the realm is the kind of math; qty is how many practice items it carries.

Students can

all four operations; × and ÷ by 10, 100, 1,000; decimal × decimal; decimal ÷ decimal by making the divisor whole.

Ready when

1.25×0.41.25 \times 0.4 and 1.25÷0.41.25 \div 0.4 both correct, with a one-line reason.

Watch for

0.3×0.3=0.90.3 \times 0.3 = 0.9; 1.2÷0.3=0.41.2 \div 0.3 = 0.4.

Before · requires

After · used by

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decimal-four-operations

Items: decimal-four-operations-01 · decimal-four-operations-02 · decimal-four-operations-03