Math Drills
Rules of Calculation (Expressions)
A-3Calculation (Distributive Law)
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What this worksheet covers
- Worksheet
- Rules of Calculation (Expressions)
Expressions with three multiplications and divisions in a row, expressions mixing addition and subtraction in, expressions with parentheses, and expressions where a shared figure is pulled out under the Distributive Law are solved in the order the rules require. Where to lay a hand first changes from expression to expression with the parentheses and the combination of operations.
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An expression holding only multiplication and division is worked in the order the operations appear. Remember multiplication as first and the hand reaches for a multiplication standing behind a division. The answer box alone settles it: work out the value taken from the left and the value with the later multiplication done first, and see which of the two the written answer matches.
This is the entrance to Mixed Calculations with Decimals, and the expressions to solve are written out in advance. From Word Problems (Basic) it falls to the child to raise those expressions out of a scene.
- Distributive Law12 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Mixed Calculations with Decimals”, shown with their answers.
(1)4.2 × 9.4 - 4.2 × 4.4 □
Answer: 21
(2)1.6 × 5.5 - 1.6 × 0.5 □
Answer: 8
(3)1.8 × 6.4 + 1.8 × 3.6 □
Answer: 18
(4)1.9 × 6.5 + 1.9 × 3.5 □
Answer: 19
(5)2.8 × 4.6 + 2.8 × 5.4 □
Answer: 28
(6)0.8 × 9.4 - 0.8 × 4.4 □
Answer: 4
(7)3.2 × 6.4 + 3.2 × 3.6 □
Answer: 32
(8)1.2 × 7.8 - 1.2 × 5.8 □
Answer: 2.4
(9)2.2 × 7.4 + 2.2 × 2.6 □
Answer: 22
(10)3.6 × 9.7 - 3.6 × 4.7 □
Answer: 18
(11)0.3 × 4.6 + 0.3 × 5.4 □
Answer: 3
(12)0.4 × 7.5 + 0.4 × 2.5 □
Answer: 4
What to do next
More worksheets in this unit
Rules of Calculation (Expressions)Rules of Calculation (Expressions) Calculation (× and ÷ First)
Rules of Calculation (Expressions)Rules of Calculation (Expressions) Calculation (With Parentheses)
Word Problems (1 Step)Word Problems (1 Step) Word Problems
Word Problems (2 Steps)Word Problems (2 Steps) Word Problems (Add-Divide, Multiply-Subtract)
Word Problems (2 Steps)Word Problems (2 Steps) Word Problems (Subtract-Divide, Multiply-Add)
Mixed Calculations with Decimals ReviewMixed Calculations with Decimals Review Calculation
