Math Drills

Multiplying and Dividing Decimals Review

J-5

Word Problems (Multiplication)

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What this worksheet covers

Grade: Grade 4 (Elementary School)
Topic: Multiplying and Dividing Decimals

Decimal times whole number and decimal divided by whole number are handled in column form. The unit covers multiplication to one, two and three decimal places, division that leaves a remainder, division that adds zeros and carries on, division answered as a rounded figure such as 2 significant digits, and the order of operations with decimals.

The decimal point is the main stumbling block. In multiplication, children leave the point in the product where it sat in the number being multiplied. In division, the point in the quotient is not placed directly above the point in the dividend, so the answer comes out ten times or a tenth of the truth. Dropping the point in a remainder, writing 2.5 as 25, also persists.

The operations at work widen from addition and subtraction to multiplication and division of decimals. Lining up the decimal point, the foundation fixed in Adding and Subtracting Decimals, still applies exactly as it did there. Working out where the decimal point lands in a product or a quotient carries on into grade 5, when Multiplication of Decimals lets the multiplier itself be a decimal.

Decimal × Whole Number (Word Problems) · 1 Decimal Place×1-Digit1 question
Decimal × Whole Number (Word Problems) · 2 Decimal Places×1-Digit2 questions
Decimal × Whole Number (Word Problems) · 1 Decimal Place×2-Digit1 question
Decimal × Whole Number (Word Problems) · 2 Decimal Places×2-Digit2 questions

Questions & answers

Problems and answers on this worksheet

These are the problems in “Multiplying and Dividing Decimals”, shown with their answers.

(1)To wrap a present, Sophia prepared ribbon, 1 piece being 12.5m long. For 6 pieces, what is the total length of the ribbon in how many m? Answer □
Answer: 75m
(2)For a birthday party, Grace prepared juice, 0.72L per bottle. For 4 bottles, how much juice is there in total, in how many L? Answer □
Answer: 2.88L
(3)To wrap a present, Sophia prepared ribbon, 1 piece being 0.85m long. For 4 pieces, how long is the ribbon in total, in how many m? Answer □
Answer: 3.4m
(4)At the orchard, Olivia stocked apples, 1 box weighing 4.5kg. She stocked 18 boxes. What is the total weight of the apples, in how many kg? Answer □
Answer: 81kg
(5)In craft time, Chloe prepared tape, 1 piece being 2.53m long. For 28 pieces, what is the total length of the tape, in how many m? Answer □
Answer: 70.84m
(6)To wrap a present, Sophia prepared ribbon, 1 piece being 0.35m long. For 20 pieces, what is the total length of the ribbon, in how many m? Answer □
Answer: 7m