VR type 28
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VR type 28
can anyone explain and solve these two sums for me?
6(15)11 9(16)15 4( ? )11
20(13)6 25(15)5 23(? )7
Thanks.
6(15)11 9(16)15 4( ? )11
20(13)6 25(15)5 23(? )7
Thanks.
Hi Amanda123
This question type has a range of variances that get progressively more difficult.
To work them our quickly and accurately students need to have good mental arithmetic skills. Particularly useful are timestables and the ability to multiply and divide outside the standard 10 x 10 tables.
The easier questions are single functions
+
-
x
divide
Then there are combinations. Some combinations are trickier than others such as multiply, then add a constant.
Children should be taught to identify basic questions first then be confident to attempt more difficult questions.
Generally, if the number in the middle is smaller than the outside numbers you will need to subtract, divide, half, subtract a constant at some point. If the number is higher you will need to add, multiply, double, add a constant
A good range of question variances can be found in a free methods & techniques course in the free download section of the site.
Regards
Mike
This question type has a range of variances that get progressively more difficult.
To work them our quickly and accurately students need to have good mental arithmetic skills. Particularly useful are timestables and the ability to multiply and divide outside the standard 10 x 10 tables.
The easier questions are single functions
+
-
x
divide
Then there are combinations. Some combinations are trickier than others such as multiply, then add a constant.
Children should be taught to identify basic questions first then be confident to attempt more difficult questions.
Generally, if the number in the middle is smaller than the outside numbers you will need to subtract, divide, half, subtract a constant at some point. If the number is higher you will need to add, multiply, double, add a constant
A good range of question variances can be found in a free methods & techniques course in the free download section of the site.
Regards
Mike
Mike Edwards is a co-author of The Tutors product range.