Activity 1 – 24361 (v2) Apply mathematical processes to BCATS projects

Student name:

Work out the following problems without the use of a calculator.

Addition

Answer the following problems without the use of your calculator.

1.	15 + 75	=	2.	37 + 15 =

3.	12 + 64 + 5 =	4.	28 + 42 + 83 =

5.	2.1 + 1.3 =	6.	2.6 + 3.9 =

7.	13.8 + 14.23 + 8.1 =	8.	0.003 + 1.742 =

Subtraction

Answer the following problems without the use of your calculator.

9.	48 – 35 =	10.	135 – 98 =

11.	1765 – 876 =	12.	6.3 – 2 =

13.	22.4 – 15.2 =	14.	124 – 45.6 =

15.	8.3 – 4.2 =	16.	7.8 – 0.03 =

Multiplication

Answer the following problems without the use of your calculator. Confirm your answer with your calculator.

17.	7 x 6 =	18.	19 x 8 =

19.	64 x 13 =	20.	21.3 x 4 =

21.	32 x 6.2	=	22.	27.2 x 5.3 =

23.	15 x 0.045 =	24.	936.2 x 0.03 =

Division

Answer the following questions without the use of you calculator. Confirm your answer with a calculator.

25.	18 ÷ 3 =	26.	25 ÷ 2 =

27.	37 ÷ 3 =	28.	2.4 ÷ 2 =

29.	524 ÷ 20 =	30.	756 ÷ 15 =