Adding and Subtracting
What is 10-24
-14
3.75+6.48
10.23
1/4 + 2/4
3/4
Convert 0.3 to a fraction
0.3 x 100 = 30
30/100
What is Mr Dominko's first name?
Riley
What is -20-+5
-25
12.6−7.35
5.25
6/10 - 1/5
6/10 - 2/10 = 4/10 or 2/5
Convert 10% to a fraction
10/100 or 1/10
Fill in the following <, >, or =
(-3)......(-5)
(-3) > (-5)
What is -14 - (-15)
1
4.2×3.5
14.7
2/6 times 6/9
(2 times 6)/(6 times 9) = 12/54 = 6/27 = 2/9
Convert
1/4
to a decimal
(1 times 100)/4 = 100/4 = 25% = 0.25
How many students are on 7C class roll?
27
What is
9 - (-2) + 3
14
12.45+7.368
19.818
2/4 divide 2/5
2/4 times 5/2 = 10/8 = 1 2/8 = 1 1/4
Convert 21% to a decimal
Fill in the following <, >, or =
(-2)......(5)
(-2)>(5)
What is 19 + (-10) - 11
-2
4.2×3.75
15.750
1/3 + 1/18 + 3/9
(1 times 6)/(3 times 6) + 1/18 + (3 times 2)/(9 times 2)
= 6/18 + 1/18 + 6/18
= 13/18
What is 0.7 as a fraction
0.7 times 100 = 70/100
Jamal is tiling the floor of his kitchen. He calculates that each square metre requires 2 kg of grout, and the kitchen floor measures 5 square metres. The hardware store sells 5 kg bags of grout for $38 each.
Calculate how much Jamal will spend on grout, taking into consideration the consequences of rounding.
Total grout needed = 2 × 5 = 10 kg.
Each bag contains 5 kg, so Jamal needs 10 ÷ 5 = 2 bags.
The cost per bag is $38, so the total cost is 2 × 38 = $76
Answer: $76