Math Drills
Subtracting 3 Numbers
B-1Fill in the Blank
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What this worksheet covers
- Worksheet
- Subtraction
Two numbers stand waiting to be taken away, and the equation is cleared from the front. Subtract once, then subtract again from whatever that leaves, a flow repeated through the bare calculations and Fill in the Blank. Subtracting in Order (Word Problems) reads scenes in which an amount shrinks in two goes.
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In Fill in the Blank, when the box lands on the second number to be taken away, children cannot work backwards from what is left and instead subtract the two figures they can see. Fitting the result back into the equation is the quickest check. In the scene-reading items the second number to subtract simply goes unread.
Items whose signs all point the same way finish with this second lesson. As in Addition, starting from the left is enough, and only the direction has changed. From Addition and Subtraction (Add → Subtract) two signs share one equation.
- Fill in the Blank20 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “3-Number Calculations”, shown with their answers.
(1)□-2-9=16
Answer: 27
(2)20-8-□=6
Answer: 6
(3)29-□-9=12
Answer: 8
(4)□-5-3=21
Answer: 29
(5)30-□-3=24
Answer: 3
(6)□-1-3=10
Answer: 14
(7)15-4-□=7
Answer: 4
(8)□-2-2=19
Answer: 23
(9)□-2-4=10
Answer: 16
(10)□-8-5=1
Answer: 14
(11)25-4-□=12
Answer: 9
(12)26-□-8=17
Answer: 1
(13)□-3-1=8
Answer: 12
(14)25-□-3=20
Answer: 2
(15)□-6-1=5
Answer: 12
(16)23-□-9=5
Answer: 9
(17)□-2-1=17
Answer: 20
(18)14-2-□=10
Answer: 2
(19)19-□-8=2
Answer: 9
(20)14-□-2=3
Answer: 9
What to do next
More worksheets in this unit
Adding 3 NumbersAdding 3 Numbers Column Calculation (1 Carry)
Adding 3 NumbersAdding 3 Numbers Column Calculation (2 Carries)
Adding 3 NumbersAdding 3 Numbers Calculation
Adding 3 NumbersAdding 3 Numbers Fill in the Blank
Adding 3 NumbersAdding 3 Numbers Word Problems
Subtracting 3 NumbersSubtracting 3 Numbers Calculation
Subtracting 3 NumbersSubtracting 3 Numbers Word Problems
Addition and Subtraction (Add → Subtract)Addition and Subtraction (Add → Subtract) Calculation
Addition and Subtraction (Add → Subtract)Addition and Subtraction (Add → Subtract) Fill in the Blank
Addition and Subtraction (Add → Subtract)Addition and Subtraction (Add → Subtract) Word Problems
Addition and Subtraction (Subtract → Add)Addition and Subtraction (Subtract → Add) Calculation
Addition and Subtraction (Subtract → Add)Addition and Subtraction (Subtract → Add) Fill in the Blank
Addition and Subtraction (Subtract → Add)Addition and Subtraction (Subtract → Add) Word Problems
Order and StrategyOrder and Strategy Calculation (Addition Strategy)
Order and StrategyOrder and Strategy Calculation (Subtraction Strategy)
Order and StrategyOrder and Strategy Calculation (Addition and Subtraction Strategy)
Order and StrategyOrder and Strategy Word Problems
3-Number Calculations Review3-Number Calculations Review Column Calculation (Addition)
3-Number Calculations Review3-Number Calculations Review Calculation
3-Number Calculations Review3-Number Calculations Review Fill in the Blank
3-Number Calculations Review3-Number Calculations Review Calculation (Strategy)
3-Number Calculations Review3-Number Calculations Review Word Problems
