Subtraction

Subtraction

Subtraction box 1
-	35	94	85	76	93	52	16	74	76	77
16	19	78	69	60	77	36	0	58	60	61
	Good	Good	Good	Good	Good	Good	Good	Good	Good	Good
Subtraction box 2
-	32	45	94	44	50	40	93	61	30	66
13	19	32	81	31	37	27	80	48	17	53
	Good	Good	Good	Good	Good	Good	Good	Good	Good	Good
Subtraction box 3
-	57	93	54	31	49	90	57	40	41	75
17	40	76	37	14	32	73	40	23	24	58
	Good	Good	Good	Good	Good	Good	Good	Good	Good	Good

This week for Maths Mr Wong Created a Challenge for Mrs Anderson maths group. What I needed to do first was make a copy and then answer the questions on the sheet.  We could use any strategies to solve this. I used algorithm and tidy numbers. For this stage It was subtraction.