WorksheetsPrime Math - Mental Addition & Subtraction
Total questions: 30
Worksheet time: 15mins
Select the pairs of numbers that make 1000.
700 and 200
100 and 900
600 and 400
100 and 0
Select the addition sentence that matches the number bond.
200 + 1000 = 800
200 + 600 = 800
200 + 800 = 1000
800 + 1000 = 1800
What is the missing number?
(a) + 300 = 1000
What is the missing number?
1000 - (a) = 500
What is the missing number?
700 - 300 = (a)
Complete the pair of numbers that make 100.
65 and (a) make 100
Complete the pair of numbers that make 100.
52 and (a) make 100
Complete the pair of numbers that make 100.
61 and (a) make 100
Complete the pair of numbers that make 100.
32 and (a) make 100
74 and 26 make 100.
Select the addition and/or subtraction
sentences that matches the number pair.
100 + 74 = 174
100 - 26 = 74
26 + 74 = 100
74 - 26 = 48
Complete the addition and subtraction sentences.
(a) + 27 = 100
Complete the addition and subtraction sentences.
100 - (a) = 91
Complete the addition and subtraction sentences.
8 + 92 = 76 + (a)
Complete the addition and subtraction sentences.
(a) + 35 = 43 + 57
Add or subtract mentally.
7 + 62 = (a)
Add or subtract mentally.
43 + 50 = (a)
Add or subtract mentally.
539 - 30 = (a)
Add or subtract mentally.
817 - 700 = (a)
Add mentally.
26 + 8 = (a)
Add mentally.
357 + 6 = (a)
Add mentally.
70 + 64 = (a)
Add mentally.
43 + 55 = (a)
Subtract mentally.
57 - 9 = (a)
Subtract mentally.
414 - 7 = (a)
Subtract mentally.
604 - 30 = (a)
Subtract mentally.
96 - 64 = (a)
Double 50 = (a)
Double 98 = (a)
Half of 150 = (a)
Half of 194 = (a)
