Decimal Fractions and Decimals: math test solutions, Grade 4

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Test solutions with the detailed point scale. Add up your points and spot what to review.

Suggested time: 45 minutes. Out of 20 points. Calculator allowed only when the problem says so.

Sommaire

a. 0.8 (1 pt)

b. 0.29 (1 pt)

c. 0.06 (1 pt)

d. \(\dfrac{73}{100}\) (1 pt)

a. \(\dfrac{70}{100}\) (1 pt)

b. \(\dfrac{9}{10}\) (1 pt)

c. \(\dfrac{50}{100}+\dfrac{8}{100}=\dfrac{58}{100}=0.58\) (1 pt)

a. 0.6 = 0.60, so \(0.58 < 0.6\). (1 pt)

b. \(0.30 = 0.3\). (1 pt)

c. The ones digits match, and 0 tenths is less than 6 tenths: \(2.06 < 2.6\). (1 pt)

In hundredths: 0.91, 0.19, 0.90, 1.01, 0.09. (1 pt for the method)

Order: 0.09 < 0.19 < 0.9 < 0.91 < 1.01. (2 pts, minus 1 pt per misplaced number)

a. A = 0.63 and B = 0.68. (2 pts)

b. \(\dfrac{63}{100}\) and \(\dfrac{68}{100}\). (1 pt)

c. B is 2 steps from 0.7 and A is 7 steps from 0.7, so B is closer. (1 pt)

Total: \(1.45+0.80=2.25\) dollars. (2 pts)

Change: \(5.00-2.25=2.75\) dollars. (1 pt)

Test yourself: quick challenge for Grade 4