grade 7th

Integers

100

Circle the square numbers in this list.

1       121     −64     49     160     −81

1, 121, 49

200

Find the possible values of n when

a. n² = 36

b. n³ =-27

a. 6 and -6

b. -3

300

Find the HCF of 34 and 58

Find the LCM of 34 and 58

HCF is 2

LCM is 986

400

Solve this equation

x³ + 125=0

x = -5

500

square root of (-5)²  - (-4)²

3

Indices

100

Write as a single power of 9

a. (9³)⁴

b. 1

a. 9¹²

b. 9⁰

200

Write down 27^-2 as a power of 3

3^-6

300

Write 1/64 as a power of 2

2^-6

400

simplify  (4ax²)⁰

1

500

7¹⁰⁰¹-7¹⁰⁰⁰/42 =?

7⁹⁹⁹

Expressions,formulae and equations

100

What is the value of x ,when:

2^x=32

x=5

200

z=-1

(3z)⁴-z⁷

82

300

x=y²+5z  make z the subject of the formula, find z when x=55 and y=5

6

400

the rectangle whose width is x and length is 3x+4

write expression for area of the rectangle

3x²+4x

500

(1/4)^3x-9=64^x+1

x=1

Decimals

100

0.085:10^-2

8.5

200

3.2:10^?=0.32

1

300

64*3.6/0.012=?

19200

400

The area of the rectangle is 0.171m²

^{width is 0.38m, length?}

0.45m

500

100.5-6.8-5.99

87.71

General

100

723846 can divide by 3 (tell the rule)

yes, if the sum of digits of the numbers can divide by 3.

200

x²=7

(x-1)(x+1)=?

6

300

9²⁰+9²⁰+9²⁰=?

3⁴¹

400

If today is Friday, what day of the week will it be in 96 days

Wednesday

500

5m 7m 3m find fourth side ? about shape

11m