Sharp EL-531LH - Page 41

38 Mastering the Calculator using the Sharp EL-531LH
Calculator solutions
1.
(i) (5 + 4) × 3= 27
Make sure your calculation is in comp mode.
(ii) 12.5 – 8 ÷ 0.5 = -3.5
(iii) = 2.5
Either (3 × 6 – 8) ÷ 4, or 3 × 6 – 8 = ÷ 4 =
(iv) = 1.007874
Either 12.8 ÷ (16.5 – 3.8) =, or 16.5 – 3.8 = × 12.8 =
(v) = 0.9
Either ... ÷ ((4 + 7) × 2) or ... ÷ (4 + 7) ÷ 2
(vi) = 3.2
Either 2.4 ÷ (3 ÷ 4), or 2.4 ÷ 3 ab/c 4 =
(vii) = 9.296..
√ (145.6 – 17.2x
2
÷ 5) =
(viii) = 1.41..
√(345.6 – 17.2x
2
) = √ ÷ 5 =
(ix) = 39.4985
25 + 3 × 27 ÷ 1.02 ÷ √ 30 =
368–
×
4
-
----------------
----
12.8
1
6.5 3
.8
–
-
-------------------
----
70.417+
×
47+()
2
×
-
------------------------
----
2.4
3
4
-
--
-
--
----
145.6 17.2
2
5
⁄–
345.6 17.2
2
–
5
⁄
2
5
327
×
1.02 3
0
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----
+