Question

1.Q1: Evaluate:
(a) 1437 x 99 – ( - 1437 )
(b) { 105 ÷ ( -7 )} ÷ { ( -85 ) ÷ 17 }
(c) 35 ÷ 0
(d) 1709 x 889 – 709 x 889
(e) | - 8 | - | -22 |
(f) ( - 14 ) – ( -141 ) – 50 -86 +144 – ( - 48 )
(g) Predecessor of -50
(h) 4.26 x 0.08
(i) 4 + 2 - 3
(j) ( 1 ) x ( 5 ) PROJECT WORK ASSIGNMENT
Q2: What should be subtracted from − to get −
Q3 Shella is in the process of making ice- cream. She heated all the
ingredients to 75°C and put them in the refrigerator to freeze. If the cooling
rate is 10 °C per hour, what will be the temperature of the ingredients in
freezer after 10 hours?
Q4: Verify that a ÷ ( b + c ) ≠ ( a ÷ b ) + ( a ÷ c )
(a) a = 24, b = 8, c = 4
(b) a = 12, b = - 2 c = - 1
Q5: In a class, there are 45 students. If 3/ 5 of the students are boys, find
the number of boys and girls in the class.

Answer 1

Answer:

Q1: Evaluate:

(a) 1437 x 99 – ( - 1437 )

(b) { 105 ÷ ( -7 )} ÷ { ( -85 ) ÷ 17 }

(c) 35 ÷ 0

(d) 1709 x 889 – 709 x 889

(e) | - 8 | - | -22 |

(f) ( - 14 ) – ( -141 ) – 50 -86 +144 – ( - 48 )

(g) Predecessor of -50

(h) 4.26 x 0.08

(i) 4 + 2 - 3

(j) ( 1 ) x ( 5 ) PROJECT WORK ASSIGNMENT

Q2: What should be subtracted from − to get −

Q3 Shella is in the process of making ice- cream. She heated all the

ingredients to 75°C and put them in the refrigerator to freeze. If the cooling

rate is 10 °C per hour, what will be the temperature of the ingredients in

freezer after 10 hours?

Q4: Verify that a ÷ ( b + c ) ≠ ( a ÷ b ) + ( a ÷ c )

(a) a = 24, b = 8, c = 4

(b) a = 12, b = - 2 c = - 1

Q5: In a class, there are 45 students. If 3/ 5 of the students are boys, find

the number of boys and girls in the