Starter quiz
In this problem, the difference between the known addends is 15 Match the expressions correctly.- When a = 20⇔the second addend = 35 ✓
- When a = 35⇔the second addend = 50 ✓
- When a = 52⇔the second addend = 67 ✓
- When a = 61⇔the second addend = 76 ✓
If we call the first missing addend a, match the expressions correctly.- When a = 15⇔the second addend = 28 ✓
- When a = 24⇔the second addend = 37 ✓
- When a = 48⇔the second addend = 61 ✓
- When a = 60⇔the second addend = 73 ✓
If we call the first missing addend a, what is the second addend when a = 10?- '-10' ✓
Match the value of the first missing number with the correct value of the second missing number.- When the first missing value is 70⇔the second missing value is 45 ✓
- When the first missing value is 85⇔the second missing value is 60 ✓
- When the first missing value is 92⇔the second missing value is 67 ✓
- When the first missing value is 88⇔the second missing value is 63 ✓
Match the value of the second missing number with the correct value of the first missing number.- When the second missing value is 75⇔the first missing value is 57 ✓
- When the second missing value is 90⇔the first missing value is 72 ✓
- When the second missing value is 85⇔the first missing value is 67 ✓
- When the second missing value is 89⇔the first missing value is 71 ✓
If the value of the first missing number is a, what is the value of the second missing number when a = 77?- '60' ✓
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