Word problems to solve - estimation and adding up - 4th grade math

Here are two money-related word problems for about 4th grade. The first one asks how many $0.89 toy figures you can get with $15, which would normally be solved with division, but here we solve it using doubling and estimation.

The second problem is a simple subtraction problem, BUT we find it's quicker to solve it using adding up. Mental math beats the regular subtraction algorithm here!

See also

Round and estimate money amounts

Math Mammoth Grade 4 curriculum

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