Elementary Math Test
Unit Assessment
Numbers and Operations in Base Ten
Student Name:
Date:
Class:
1
Rounding to Tens and Hundreds
(6 points total / 1 point each)
Round each number below to the specified place value. Write your answer clearly inside the large blank box.
Round 67 to the nearest 10
Round 142 to the nearest 100
Round 824 to the nearest 10
Round 581 to the nearest 100
Round 95 to the nearest 10
Round 749 to the nearest 100
2
Addition and Subtraction up to 1,000
(4 points total / 1 point each)
Solve each problem below. Show all your regrouping and calculation steps clearly in the large workspace boxes.
Problem A (1 point)
485 +239
Show Work Here
Problem B (1 point)
703 -428
Show Work Here
Problem C (1 point)
512 +387
Show Work Here
Problem D (1 point)
854 -378
Show Work Here
MATHEMATICS UNIT ASSESSMENT: BASE TEN OPERATIONS PAGE 1 OF 2
UNIT ASSESSMENT: SECTION 3
Student Name:
3
Applied Word Problems
(2 points total / 1 point each)
Read each problem carefully. Write an equation, show all your steps inside the massive workspace boxes, and write your final answer with correct labels.
- The school cafeteria served 384 warm lunches on Monday and 278 warm lunches on Tuesday. How many total lunches did they serve over both days combined?
Show All Your Mathematical Steps Here
Total Lunches Served:
lunches
- A local toy store had 743 popular board games on its shelves. During a big weekend sale, the store sold 285 of those games. How many board games are left on shelves now?
Show All Your Mathematical Steps Here
Board Games Left:
games
MATHEMATICS UNIT ASSESSMENT: BASE TEN OPERATIONS PAGE 2 OF 2
Elementary Math Answer Key
MATH UNIT ASSESSMENT KEY
Comprehensive Solutions & Grading Standards
1
Rounding to Tens and Hundreds Answers
[6 Points / 1 Point Each]
1. 67 → nearest 10 70
Ones place holds 7 ≥ 5; round tens digit up.
2. 142 → nearest 100 100
Tens place holds 4 < 5; round hundreds down.
3. 824 → nearest 10 820
Ones place holds 4 < 5; round tens down.
4. 581 → nearest 100 600
Tens place holds 8 ≥ 5; round hundreds up.
5. 95 → nearest 10 100
Ones place holds 5 ≥ 5; round up (9 + 1 = 10 tens).
6. 749 → nearest 100 700
Tens place holds 4 < 5; ignore ones digit entirely.
2
Addition & Subtraction Answers and Steps
[4 Points / 1 Point Each]
Problem A Key: 724
11 485 +239 724
Regrouping Steps: 1) Ones column: 5 + 9 = 14.
Write 4 in ones place, carry 1 ten.
2) Tens column: 1 + 8 + 3 = 12.
Write 2 in tens place, carry 1 hundred.
3) Hundreds column: 1 + 4 + 2 = 7.
Problem B Key: 275
6913 703 -428 275
Regrouping Steps: Borrow across 0 from hundreds:
703 becomes 6 hundreds, 9 tens, and 13 ones.
- Ones column: 13 − 8 = 5.
- Tens column: 9 − 2 = 7.
- Hundreds column: 6 − 4 = 2.
Problem C Key: 899
512 +387 899
No Regrouping: Each place value adds up to less than 10:
- Ones column: 2 + 7 = 9.
- Tens column: 1 + 8 = 9.
- Hundreds column: 5 + 3 = 8.
Problem D Key: 476
71414 854 -378 476
Regrouping Steps: 1) Ones column: 4 − 8 needs borrowing.
Borrow from 5 tens to get 14 ones. 14 − 8 = 6 ones.
2) Tens column: 4 − 7 needs borrowing.
Borrow from 8 hundreds to get 14 tens. 14 − 7 = 7 tens.
3) Hundreds column: 7 − 3 = 4 hundreds.
MATH ASSESSMENT TEACHER ANSWER KEY PAGE 1 OF 2
ASSESSMENT KEY: SECTION 3 Section 3 Word Problems Solutions
3
Applied Word Problems Solutions
[2 Points / 1 Point Each]
1. School Lunches Combination (Addition) 1 point
Equation & Regrouping Calculation: 384 + 278 = 662
* Ones Column: 4 + 8 = 12.
Write 2 in ones place, carry 1 ten.
* Tens Column: 1 (carried) + 8 + 7 = 16.
Write 6 in tens place, carry 1 hundred.
* Hundreds Column: 1 (carried) + 3 + 2 = 6 hundreds.
* Complete Result: 662.
Correct Answer: 662 lunches
2. Toy Store Shelves (1-Step Subtraction) 1 point
Equation & Regrouping Calculation: 743 − 285 = 458
* Ones Column: 3 − 5 requires borrowing.
Regroup 4 tens to 3 tens and 13 ones. Then, 13 − 5 = 8 ones.
* Tens Column: 3 − 8 requires borrowing.
Regroup 7 hundreds to 6 hundreds and 13 tens. Then, 13 − 8 = 5 tens.
* Hundreds Column: 6 hundreds − 2 hundreds = 4 hundreds.
* Complete Result: 458.
Correct Answer: 458 games
4
Open Response Point Scale Checklist
- 1.0 Point (Full Credit): The student set up the math equation correctly, showed correct regrouping steps, calculated the correct numeric answer, and included the correct label ("lunches" or "games").
- 0.5 Point (Partial Credit): The student set up the calculation equation correctly but made a single addition or subtraction mistake, or set up the formula correctly but made a minor regrouping mistake.
- 0.0 Point (No Credit): Incorrect equation setup, numbers completely random/unrelated, or the answer box was left entirely blank.
MATH ASSESSMENT TEACHER ANSWER KEY PAGE 2 OF 2
