// Numbas version: exam_results_page_options
{"name": "00a - Engineering Arithmetic: 002", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"preamble": {"js": "", "css": ""}, "variable_groups": [], "advice": "<p>a)&nbsp; &nbsp;$\\var{a1}+\\var{a2}=\\var{a3}$</p>\n<p>b)&nbsp; &nbsp;It has to be the subtraction symbol because&nbsp; $-(-)$&nbsp; makes a&nbsp; $+$&nbsp; &nbsp;and&nbsp; &nbsp;$\\var{b1}+\\var{b2a}=\\var{b3}$</p>\n<p>c)&nbsp; &nbsp;$\\var{c3} \\div \\var{c2}=\\var{c1}$</p>\n<p>d)&nbsp; &nbsp;How can we make&nbsp; $\\var{d3}$&nbsp; out of&nbsp; $\\var{d1}$&nbsp; and&nbsp;&nbsp;$\\var{d2}$?</p>\n<p>&nbsp; &nbsp; &nbsp; By multiplication, also minus times minus gives plus. Thus&nbsp; &nbsp;$\\var{d1} \\times \\var{d2}=\\var{d3}$</p>\n<p>e)&nbsp; &nbsp;$\\var{e1}$&nbsp; add&nbsp; $\\var{e2a}$&nbsp; gives&nbsp; $\\var{e3}$.&nbsp; This can only be achieved by using a subtraction symbol between the two numbers because&nbsp; &nbsp;$-(\\var{e2}$&nbsp; &nbsp;gives&nbsp; &nbsp;$\\var{e2a}$.</p>\n<p>&nbsp; &nbsp; &nbsp; Therefore:&nbsp;&nbsp;$\\var{e1}-(\\var{e2})=\\var{e3}$</p>", "functions": {}, "variablesTest": {"maxRuns": 100, "condition": ""}, "extensions": [], "ungrouped_variables": ["a1", "a2", "a3", "b1", "b2", "b2a", "b3", "c1", "c2", "c3", "d1", "d2", "d3", "e1", "e2", "e3", "e2a"], "parts": [{"extendBaseMarkingAlgorithm": true, "gaps": [{"minMarks": 0, "extendBaseMarkingAlgorithm": true, "maxMarks": 0, "showCorrectAnswer": true, "distractors": ["", "", "", ""], "shuffleChoices": true, "customMarkingAlgorithm": "", "type": "1_n_2", "variableReplacementStrategy": "originalfirst", "displayColumns": 0, "showCellAnswerState": true, "displayType": "radiogroup", "customName": "", "scripts": {}, "variableReplacements": [], "matrix": ["1", 0, 0, 0], "unitTests": [], "showFeedbackIcon": true, "choices": ["$+$", "$-$", "$\\div$", "$\\times$"], "marks": 0, "useCustomName": false}], "showCorrectAnswer": true, "prompt": "<p>$\\var{a1}$&nbsp; ??&nbsp; $\\var{a2}=\\var{a3}$</p>\n<p>[[0]]</p>", "customMarkingAlgorithm": "", "type": "gapfill", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "customName": "", "scripts": {}, "variableReplacements": [], "unitTests": [], "marks": 0, "useCustomName": false, "sortAnswers": false}, {"extendBaseMarkingAlgorithm": true, "gaps": [{"minMarks": 0, "extendBaseMarkingAlgorithm": true, "maxMarks": 0, "showCorrectAnswer": true, "distractors": ["", "", "", ""], "shuffleChoices": true, "customMarkingAlgorithm": "", "type": "1_n_2", "variableReplacementStrategy": "originalfirst", "displayColumns": 0, "showCellAnswerState": true, "displayType": "radiogroup", "customName": "", "scripts": {}, "variableReplacements": [], "matrix": [0, "1", 0, 0], "unitTests": [], "showFeedbackIcon": true, "choices": ["$+$", "$-$", "$\\div$", "$\\times$"], "marks": 0, "useCustomName": false}], "showCorrectAnswer": true, "prompt": "<p>$\\var{b1}$&nbsp; ??&nbsp; $\\var{b2}=\\var{b3}$</p>\n<p>[[0]]</p>", "customMarkingAlgorithm": "", "type": "gapfill", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "customName": "", "scripts": {}, "variableReplacements": [], "unitTests": [], "marks": 0, "useCustomName": false, "sortAnswers": false}, {"extendBaseMarkingAlgorithm": true, "gaps": [{"minMarks": 0, "extendBaseMarkingAlgorithm": true, "maxMarks": 0, "showCorrectAnswer": true, "distractors": ["", "", "", ""], "shuffleChoices": true, "customMarkingAlgorithm": "", "type": "1_n_2", "variableReplacementStrategy": "originalfirst", "displayColumns": 0, "showCellAnswerState": true, "displayType": "radiogroup", "customName": "", "scripts": {}, "variableReplacements": [], "matrix": [0, 0, "1", 0], "unitTests": [], "showFeedbackIcon": true, "choices": ["$+$", "$-$", "$\\div$", "$\\times$"], "marks": 0, "useCustomName": false}], "showCorrectAnswer": true, "prompt": "<p>$\\var{c3}$&nbsp; ??&nbsp; $\\var{c2}=\\var{c1}$</p>\n<p>[[0]]</p>", "customMarkingAlgorithm": "", "type": "gapfill", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "customName": "", "scripts": {}, "variableReplacements": [], "unitTests": [], "marks": 0, "useCustomName": false, "sortAnswers": false}, {"extendBaseMarkingAlgorithm": true, "gaps": [{"minMarks": 0, "extendBaseMarkingAlgorithm": true, "maxMarks": 0, "showCorrectAnswer": true, "distractors": ["", "", "", ""], "shuffleChoices": true, "customMarkingAlgorithm": "", "type": "1_n_2", "variableReplacementStrategy": "originalfirst", "displayColumns": 0, "showCellAnswerState": true, "displayType": "radiogroup", "customName": "", "scripts": {}, "variableReplacements": [], "matrix": [0, 0, 0, "1"], "unitTests": [], "showFeedbackIcon": true, "choices": ["$+$", "$-$", "$\\div$", "$\\times$"], "marks": 0, "useCustomName": false}], "showCorrectAnswer": true, "prompt": "<p>$\\var{d1}$&nbsp; ??&nbsp; $\\var{d2}=\\var{d3}$</p>\n<p>[[0]]</p>", "customMarkingAlgorithm": "", "type": "gapfill", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "customName": "", "scripts": {}, "variableReplacements": [], "unitTests": [], "marks": 0, "useCustomName": false, "sortAnswers": false}, {"extendBaseMarkingAlgorithm": true, "gaps": [{"minMarks": 0, "extendBaseMarkingAlgorithm": true, "maxMarks": 0, "showCorrectAnswer": true, "distractors": ["", "", "", ""], "shuffleChoices": true, "customMarkingAlgorithm": "", "type": "1_n_2", "variableReplacementStrategy": "originalfirst", "displayColumns": 0, "showCellAnswerState": true, "displayType": "radiogroup", "customName": "", "scripts": {}, "variableReplacements": [], "matrix": [0, "1", 0, 0], "unitTests": [], "showFeedbackIcon": true, "choices": ["$+$", "$-$", "$\\div$", "$\\times$"], "marks": 0, "useCustomName": false}], "showCorrectAnswer": true, "prompt": "<p>$\\var{e1}$&nbsp; ??&nbsp; $\\var{e2}=\\var{e3}$</p>\n<p>[[0]]</p>", "customMarkingAlgorithm": "", "type": "gapfill", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "customName": "", "scripts": {}, "variableReplacements": [], "unitTests": [], "marks": 0, "useCustomName": false, "sortAnswers": false}], "tags": [], "rulesets": {}, "name": "00a - Engineering Arithmetic: 002", "metadata": {"licence": "Creative Commons Attribution 4.0 International", "description": "<p>Questions based on Exercise Intro(a) from the Textbook \"Engineering Maths through Applications\" by Kuldeep Singh.</p><p>Intended for use as Homework Exercises.</p>"}, "variables": {"d3": {"name": "d3", "templateType": "anything", "description": "", "definition": "{d1}*{d2}", "group": "Ungrouped variables"}, "b3": {"name": "b3", "templateType": "anything", "description": "", "definition": "{b1}-{b2}", "group": "Ungrouped variables"}, "e3": {"name": "e3", "templateType": "anything", "description": "", "definition": "{e1}-{e2}", "group": "Ungrouped variables"}, "e1": {"name": "e1", "templateType": "randrange", "description": "", "definition": "random(-3 .. -15#1)", "group": "Ungrouped variables"}, "a2": {"name": "a2", "templateType": "randrange", "description": "", "definition": "random(15 .. 29#1)", "group": "Ungrouped variables"}, "b2": {"name": "b2", "templateType": "randrange", "description": "", "definition": "random(-2 .. -15#1)", "group": "Ungrouped variables"}, "a1": {"name": "a1", "templateType": "randrange", "description": "<p>a1</p>", "definition": "random(22 .. 36#1)", "group": "Ungrouped variables"}, "a3": {"name": "a3", "templateType": "anything", "description": "", "definition": "{a1}+{a2}", "group": "Ungrouped variables"}, "b2a": {"name": "b2a", "templateType": "anything", "description": "", "definition": "{b2}*(-1)", "group": "Ungrouped variables"}, "d2": {"name": "d2", "templateType": "randrange", "description": "", "definition": "random(-16 .. -25#1)", "group": "Ungrouped variables"}, "b1": {"name": "b1", "templateType": "randrange", "description": "", "definition": "random(15 .. 25#1)", "group": "Ungrouped variables"}, "d1": {"name": "d1", "templateType": "randrange", "description": "", "definition": "random(-5 .. -15#1)", "group": "Ungrouped variables"}, "e2a": {"name": "e2a", "templateType": "anything", "description": "", "definition": "{e2}*(-1)", "group": "Ungrouped variables"}, "c2": {"name": "c2", "templateType": "randrange", "description": "", "definition": "random(3 .. 9#1)", "group": "Ungrouped variables"}, "c3": {"name": "c3", "templateType": "anything", "description": "", "definition": "{c1}*{c2}", "group": "Ungrouped variables"}, "e2": {"name": "e2", "templateType": "randrange", "description": "", "definition": "random(-5 .. -20#1)", "group": "Ungrouped variables"}, "c1": {"name": "c1", "templateType": "randrange", "description": "<p>c1</p>", "definition": "random(15 .. 45#1)", "group": "Ungrouped variables"}}, "statement": "<p>Select the correct symbol&nbsp; $+$,&nbsp; $-$,&nbsp; $\\div$,&nbsp; $\\times$ :</p>", "contributors": [{"name": "Michael Proudman", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/269/"}]}]}], "contributors": [{"name": "Michael Proudman", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/269/"}]}