Workbook Detail
Subtraction Within 100 Easy — Set 72
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"subject": "arithmetic",
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"operand1": 79,
"operand2": 50,
"operator": "-",
"question": "79 - 50 = ___",
"answer": 29
},
{
"id": 2,
"operand1": 54,
"operand2": 20,
"operator": "-",
"question": "54 - 20 = ___",
"answer": 34
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{
"id": 3,
"operand1": 2,
"operand2": 1,
"operator": "-",
"question": "2 - 1 = ___",
"answer": 1,
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"operation": "subtract",
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{
"id": 4,
"operand1": 99,
"operand2": 68,
"operator": "-",
"question": "99 - 68 = ___",
"answer": 31
},
{
"id": 5,
"operand1": 93,
"operand2": 51,
"operator": "-",
"question": "93 - 51 = ___",
"answer": 42
},
{
"id": 6,
"operand1": 76,
"operand2": 3,
"operator": "-",
"question": "76 - 3 = ___",
"answer": 73
},
{
"id": 7,
"operand1": 4,
"operand2": 2,
"operator": "-",
"question": "4 - 2 = ___",
"answer": 2,
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{
"id": 8,
"operand1": 18,
"operand2": 1,
"operator": "-",
"question": "18 - 1 = ___",
"answer": 17
},
{
"id": 9,
"operand1": 66,
"operand2": 63,
"operator": "-",
"question": "66 - 63 = ___",
"answer": 3
},
{
"id": 10,
"operand1": 25,
"operand2": 2,
"operator": "-",
"question": "25 - 2 = ___",
"answer": 23
},
{
"id": 11,
"operand1": 87,
"operand2": 5,
"operator": "-",
"question": "87 - 5 = ___",
"answer": 82
},
{
"id": 12,
"operand1": 56,
"operand2": 36,
"operator": "-",
"question": "56 - 36 = ___",
"answer": 20
},
{
"id": 13,
"operand1": 4,
"operand2": 1,
"operator": "-",
"question": "4 - 1 = ___",
"answer": 3,
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"operation": "subtract",
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{
"id": 14,
"operand1": 27,
"operand2": 26,
"operator": "-",
"question": "27 - 26 = ___",
"answer": 1
},
{
"id": 15,
"operand1": 68,
"operand2": 2,
"operator": "-",
"question": "68 - 2 = ___",
"answer": 66
},
{
"id": 16,
"operand1": 46,
"operand2": 41,
"operator": "-",
"question": "46 - 41 = ___",
"answer": 5
},
{
"id": 17,
"operand1": 96,
"operand2": 94,
"operator": "-",
"question": "96 - 94 = ___",
"answer": 2
},
{
"id": 18,
"operand1": 85,
"operand2": 4,
"operator": "-",
"question": "85 - 4 = ___",
"answer": 81
},
{
"id": 19,
"operand1": 17,
"operand2": 10,
"operator": "-",
"question": "17 - 10 = ___",
"answer": 7
},
{
"id": 20,
"operand1": 95,
"operand2": 34,
"operator": "-",
"question": "95 - 34 = ___",
"answer": 61
}
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"_archetype": "form-exercise",
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}Teaching Notes
79
-50
54
-20
2
-1
99
-68
93
-51
76
-3
4
-2
18
-1
66
-63
25
-2
87
-5
56
-36
4
-1
27
-26
68
-2
46
-41
96
-94
85
-4
17
-10
95
-34
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