Length: 0:42I'm Thinking of a Number (plus)My number plus 148 makes 600. What is my number?Grade 4Math story 81 · Word problems
First One, Then Many
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3 notebooks cost 6 dollars. How much do 5 notebooks cost?
First the price of 1 notebook: 6 divided by 3 is 2 dollars.
Then 5 times 2. 5 notebooks cost 10 dollars.
4 pencils cost 8 dollars. How much do 7 pencils cost?
Answer and working
Correct! One pencil costs 2 dollars. 7 times 2 is 14 dollars.
7 × 2 = 14
Word problems
Length: 0:42I'm Thinking of a Number (plus)My number plus 148 makes 600. What is my number?Grade 4
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