Automatic Checking
Try the automatic checker!
Check if the example is correctly calculated
Then replace it with your own calculation.
You have access to 5 free demo checks every hour.
{
"type": "solutionelement",
"name": "solutionelement-checkerdemo",
"metadata": {},
"data": {
"contents": [{"id": "sdelement-demodata"}],
"contentdata": {
"sdelement-demodata": {
"type": "sdelement",
"name": "sdelement-demodata",
"metadata": {},
"data": {
"dstepdata": {
"stask-onlineuser-20181107103818788-911": {
"readonly": false,
"task": [
{
"text": "Calculate $3\\frac{1}{2}\\unit{l}\\cdot k$ -- the kilometers travelled ",
"type": "calculate",
"readonly": false,
"fillable": false,
"attrs": {},
"answer": {
"text": "$28\\unit{km}$ -- the answer",
"readonly": false,
"fillable": false,
"attrs": {}
}
}
],
"assumption": [
{
"label": "a",
"text": "$k=8\\unit{\\frac{km}{l}}$ -- milage, how may kilometers per liter",
"readonly": false,
"fillable": false,
"attrs": {}
}
],
"observation": [],
"derivmotivation": [
{
"text": "calculate the value of the expression",
"readonly": false,
"fillable": false,
"subshidden": false,
"subderiv": [],
"attrs": {}
}
],
"term": [
{
"text": "3\\frac{1}{2}\\unit{l}\\cdot k",
"readonly": false,
"fillable": false,
"attrs": {}
},
{
"text": "\\frac{7}{2}\\unit{l}\\cdot8\\unit{\\frac{km}{l}}",
"readonly": false,
"fillable": false,
"attrs": {}
},
{
"text": "\\frac{7}{2}\\cdot8\\unit{km}",
"readonly": false,
"fillable": false,
"attrs": {}
},
{
"text": "28\\unit{km}",
"readonly": false,
"fillable": false,
"attrs": {}
}
],
"relation": [
{
"text": "=",
"readonly": false,
"fillable": false,
"attrs": {}
},
{
"text": "=",
"readonly": false,
"fillable": false,
"attrs": {}
},
{
"text": "=",
"readonly": false,
"fillable": false,
"attrs": {}
}
],
"motivation": [
{
"text": "change to simple fraction and use assumption",
"readonly": false,
"fillable": false,
"subshidden": false,
"subderiv": [],
"attrs": {}
},
{
"text": "simplify the sorts",
"readonly": false,
"fillable": false,
"subshidden": false,
"subderiv": [],
"attrs": {}
},
{
"text": "caculate",
"readonly": false,
"fillable": false,
"subshidden": false,
"subderiv": [],
"attrs": {}
}
]
}
},
"caption": {
"text": "Example solution:",
"readonly": true,
"fillable": false,
"attrs": {}
},
"dsteps": [
{
"id": "stask-onlineuser-20181107103818788-911",
"type": "task"
}
]
}
}
}
}
}
Word Problem
Check if the word problem example to the left is calculated correctly. You can exchange it with your own calculation, and check that one as well.