Grade 2 Math: 10 Free Practice Questions

Answer: 63 cents
Leo needs 63 more cents, because 37 cents + 63 cents = 100 cents = $1.00. One dollar equals 100 cents, and $0.37 equals 37 cents. Subtract: 100 − 37 = 63. Check by adding back: 37 + 63 = 100 cents, which is $1.00. Students often subtract only in the tens place and answer 73 cents, forgetting to regroup, or repeat the amount he already has (37 cents).

Answer: 7
Each friend gets 7 grapes. Divide 14 grapes into 2 equal groups: 14 ÷ 2 = 7 grapes per friend. Students may make an arithmetic slip and choose a nearby number like 6 or 8 instead of correctly halving 14.

Answer: 7
The digit 7 is in the tenths place because it comes right after the decimal point. In 4.7, the decimal point separates the whole part from the parts smaller than one. The 4 is in the ones place. The first digit after the decimal point is the tenths place, and that digit is 7. Students often choose the digit before the decimal point (4), confusing the ones place with the tenths place.

Answer: 8 cm
✅ Correct Answer: 8 cm 🧒 For Kids: 23 − 15 = 8 centimeters The ruler is 8 cm longer than the pencil. 💡 Tip: 'How much longer' = subtract the shorter length from the longer one. 👨‍👩‍👧 For Parents: OH-2.MD.2 — comparing lengths measured in the same unit. Subtraction with measurement context.

Answer: 6
The missing number is 6 because 10 − 6 = 4. Use the related fact: 10 − 4 = 6. Check: 10 − 6 = 4. Students may add 10 + 4 to get 14 instead of finding the missing part.

Answer: 20
26 rounds to 20. 26 is between 20 and 30. The ones digit is 6... wait, 6 is greater than 5, so it should round up. Check: 26's ones digit is 6, which is 5 or greater, so 26 rounds up to 30. Students round down to 20 because 2 tens is the smaller number they see first.

Answer: 56
56 rounds to 60 because the ones digit, 6, is 5 or greater. Check each choice's ones digit: 54 rounds to 50, 56 rounds to 60, 65 rounds to 70, 45 rounds to 50 (or 40 depending on convention, but standard rule rounds up). Only 56 correctly rounds to 60. Students choose 65 because it looks visually closer to 60 without checking the rounding rule properly, or confuse 45 which rounds to 50.

Answer: 15 gallons
Filling 3 tanks that each hold 5 gallons requires 15 gallons of water. Multiply the amount per tank by the number of tanks: 5 gallons x 3 tanks = 15 gallons. Students may add 5 + 3 = 8 instead of multiplying, mistaking the number of tanks for an amount to be added rather than a repeated group.

Answer: A shape with 3 sides that is tall and narrow, a shape with 3 sides that is short and wide, and a shape with 3 sides that is tilted sideways
All three shapes in option A have 3 sides, so they are all triangles despite looking different. A shape qualifies as a triangle only if it has exactly 3 straight sides, regardless of its height, width, or orientation. Option A lists three shapes that each have 3 sides, just presented differently. Students may think shapes that look different (tall vs. wide vs. tilted) cannot all be triangles.

Answer: A coffee mug
A coffee mug would most likely hold less than 1 gallon. A coffee mug typically holds about 1-2 cups of liquid, which is far less than 1 gallon (16 cups). Bathtubs, coolers, and large water jugs hold much more than a gallon. Students may not have a clear sense of gallon-sized quantities and choose a large container instead of the smallest one.