Evaluate Using Properties : 7984 X 15 – 7984 X 5 - Mathematics

Evaluate using properties :
7984 x 15 – 7984 x 5

योग

7984 x 15 – 7984 x 5
= 7984 x (15 – 5) (using distributivity)
= 7984 x 10 = 79840

shaalaa.com

क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

अध्याय 5: Natural Numbers and Whole Numbers (Including Patterns) - Exercise 5 (C)

अध्याय 5 Natural Numbers and Whole Numbers (Including Patterns)
Exercise 5 (C) | Q 5.4

State True or False:
The sum of two even numbers is an odd number.

Fill in the blank :
229 x ________ = 578 x 229

Evaluate using properties :
333 x 987 + 13 x 3333

Solve:

1 x 9 + 1 = 10
12 x 9 + 2 = 110
123 x 9 + 3 = 1110

Solve:

9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888

In each of the following patterns, construct next figure.
In each case, if n denotes the number of figure and F denotes the number of matchsticks used, find F in terms of n.
Also find, in each case, how many matches are required to make the: 16th figure and 30th figure.