In 4th grade math practice 7 the questions are related to fourth grade numbers activities. The questions are based on numbers like forming largest and smallest numbers, expanded form of a number, standard form of a number, predecessor and successor of a number, comparing numbers, estimating the sum and the difference, common factors, multiples, finding the product and quotient and arranging the fractions in ascending and descending order.

**1. **Write the largest and smallest numbers formed by using the digits only once.

9, 7, 0, 8.

Now write the number names of these numbers.

**2. **(a) Write in expanded form:

(i) 17056

(ii) 245698

(b) Write in standard form:

(i) 900000 + 9000 + 9

(ii) 10000 + 7000 + 20 + 8

**3. ** (a) Write the predecessor and successor of:

(i) 175000

(ii) 99000

(b) Compare using >, <, =

(i) 42358 ____ 42385

(ii) 34870 ____ 34790 + 80

**4. ** (a) Estimate the sum to the nearest hundred. Find the actual sum also.

298 + 897

(b) Estimate the difference to the nearest thousand and find the actual difference.

6828 - 2989

**5. ** Find the product:

(a) 297 × 1000

(b) 7254 × 97

**6. ** (a) Find the quotient:

(i) 25608 ÷ 1000

(ii) 3978 ÷ 100

(b) Estimate and verify the quotient:

777 ÷ 18

**7. ** Use the symbols >, =, <

(a) 27 ____ XX

(b) XI ____ IX

(c) 29 ____ XXIX

(d) XIX ____ XXI

**8. **Complete the following:

(i) 40 is a multiple of _______ _______ _______ _______.

(ii) The sum of the first three multiples of 9 is _________________.

**9. **Find the common factors of 50 and 20.

**10. **(a) Write the fractions in ascending order :

³/₇, ³/₁₁, ³/₈, ³/₁₃

(b) Write the fractions in descending order:

¹/₇, ¹/₈, ¹/₃, ¹/₄

Answers for the 4th grade math practice 7 are given below to check the exact answers of the above questions on numbers.

1. 7089 – Seven thousand eighty nine

9870 – Nine thousand eight hundred and seventy.

2. (a) (i) 17056 = 10000 + 7000 + 50 + 6

(ii) 245698 = 200000 + 40000 + 5000 + 600 + 90 + 8

(b) (i) 909009

(ii) 17028

3. (a) (i) 174999, 175000, 175001

(ii) 98999, 99000, 99001

(b) (i) 42358 **<** 42385

(ii) 34870 **=** 34790 + 80

4. (a) estimate: 1200; sum: 1195

(b) estimate: 4000; sum: 3839

5. (a) 297000

(b) 703638

6. (a) (i) quotient: 25; remainder: 608

(ii) quotient: 39; remainder: 78

(b) estimate: 40; quotient: 43; remainder: 13

7. (a) 27 **>** XX

(b) XI **>** IX

(c) 29 **=** XXIX

(d) XIX **<** XXI

8. (i) 2, 4, 5, 10

(ii) 54

9. 2, 5, 10

10. (a) ³/₁₃, ³/₁₁, ³/₈, ³/₇

(b) ¹/₃, ¹/₄, ¹/₇, ¹/₈

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