Comparing and Ordering Numbers: math test solutions, Grade 2 – download the PDF

1 Greater than, less than / 3 pts

1. Tens: \(1 \lt 4\), so \(614 \lt 641\) (1 pt).
2. Hundreds: \(9 \gt 3\), so \(903 \gt 309\) (1 pt).
3. \(700 + 50 = 750\), so \(750 = 700 + 50\) (1 pt).

2 Ordering / 3 pts

Hundreds groups: 1, 3, 3, 8, 8. Then \(318 \lt 381\) and \(813 \lt 831\).

Order: 183, 318, 381, 813, 831 (2 pts).

The greatest number is 831 (1 pt).

3 Mental math / 4 pts

1. \(377\) (1 pt)
2. \(467\) (1 pt)
3. \(510\) (1 pt)
4. \(420\) (1 pt)

4 Number line / 3 pts

The labeled marks count by 10 and the small marks by 5.

P is 515 (1 pt), Q is 540 (1 pt), R is 575 (1 pt).

5 Skip counting / 3 pts

1. 425, 430, 435 (1 pt)
2. 750, 740, 730 (1 pt)
3. 248, 348, 448 (1 pt)

6 The theater / 4 pts

1. The back section, with 629 seats (1 pt).
2. \(269 \lt 296 \lt 629\): middle, front, back (1 pt).
3. \(269 + 100 = 369\) seats (1 pt).
4. Yes. 369 has 3 hundreds and 296 has 2 hundreds, so \(369 \gt 296\) (1 pt).