FORM 1 MATHEMATICS MARKING SCHEME
1. What is the place value of total value of digit 6 underlined below.. (3mks)
47,397,263,402
Ten thousands
t.v= p.v x N
10000 x 6
=60,000
2. Round off the following numbers to the nearest number indicated in the brackets. (3mks)
a) 473,678(100)
473700
b) 379(10)
380
c) 38,679(10,000) 40,000
3. Write the following in symbols. (2mks)
a) Five billion, five million, five thousand and five. 5,005,005,005
b) Write the following in words 80,000,045, 000 (2mks)
Eighty billion, forty five thousand
4. Express the following numbers as a product of their prime factors.
a) 900 (2mks)
= 22 x32x52
b) 300 (2mks)
22 x 3x 52
c) 196 (2mks
2
2 98 2x2x7x7
7 49 22x7
7 7
7 1
d) 64 (2mks)
2 32
2 16 =25
2 8
4
2 2 2 2x2x2x2x2
5. Use the number line to perform the following.
a) (+5) – (-2) (2mks)
b) (+2) + (+3) (2mks)
1. What is the place value of total value of digit 6 underlined below.. (3mks)
47,397,263,402
Ten thousands
t.v= p.v x N
10000 x 6
=60,000
2. Round off the following numbers to the nearest number indicated in the brackets. (3mks)
a) 473,678(100)
473700
b) 379(10)
380
c) 38,679(10,000) 40,000
3. Write the following in symbols. (2mks)
a) Five billion, five million, five thousand and five. 5,005,005,005
b) Write the following in words 80,000,045, 000 (2mks)
Eighty billion, forty five thousand
4. Express the following numbers as a product of their prime factors.
a) 900 (2mks)
= 22 x32x52
b) 300 (2mks)
22 x 3x 52
c) 196 (2mks
2
2 98 2x2x7x7
7 49 22x7
7 7
7 1
d) 64 (2mks)
2 32
2 16 =25
2 8
4
2 2 2 2x2x2x2x2
5. Use the number line to perform the following.
a) (+5) – (-2) (2mks)
b) (+2) + (+3) (2mks)
