Practice with the help of Spectrum Math Grade 1 Answer Key Chapter 1 Pretest regularly and improve your accuracy in solving questions.
Spectrum Math Grade 1 Chapter 1 Pretest Answers Key
Check What You Know
Addition and Subtraction Facts through 10
Add.
1.
Answer:
Explanation:
Addition:
5 + 1 = 6.
=> Five plus one equals six.
2.
Answer:
Explanation:
Addition:
3 + 2 = 5.
=> Three plus two equals five.
3.
Answer:
Explanation:
Addition:
1 + 1 = 2.
=> One plus one equals two.
4.
Answer:
Explanation:
Addition:
2 + 4 = 6.
=> Two plus four equals six.
5.
Answer:
Explanation:
Addition:
6 + 0 = 6.
=> Six plus zero equals six.
6.
Answer:
Explanation:
Addition:
4 + 1 = 5.
=> Four plus one equals five.
7.
Answer:
Explanation:
Addition:
4 + 0 = 4.
=> Four plus zero equals four.
8.
Answer:
Explanation:
Addition:
2 + 1 = 3.
=> Two plus one equals three.
9.
Answer:
Explanation:
Addition:
3 + 0 = 3.
=> Three plus zero equals three.
10.
Answer:
Explanation:
Addition:
1 + 3 = 4.
=> One plus three equals four.
11.
Answer:
Explanation:
Addition:
4 + 2 = 6.
=> Four plus two equals six.
12.
Answer:
Explanation:
Addition:
1 + 2 = 3.
=> One plus two equals three.
13. 0 + 6 = ____
Answer:
0 + 6 = 6.
Explanation:
Addition:
0 + 6 = 6.
=> Zero plus six equals six.
14. 3 + 3 = ____
Answer:
3 + 3 = 6.
Explanation:
Addition:
3 + 3 = 6.
=> Three plus three equals six.
15. 0 + 4 = ____
Answer:
0 + 4 = 4.
Explanation:
Addition:
0 + 4 = 4.
=> Zero plus four equals four.
16. 3 + 1 = ____
Answer:
3 + 1 = 4.
Explanation:
Addition:
3 + 1 = 4.
=> Three plus one equals four.
17. 2 + 4 = ____
Answer:
Explanation:
Addition:
2 + 4 = 6.
=> Two plus four equals six.
18. 1 + 5 = ____
Answer:
1 + 5 = 6.
Explanation:
Addition:
1 + 5 = 6.
=> One plus five equals six.
Subtract.
19.
Answer:
Explanation:
Subtraction:
6 – 1 = 5.
=> Six minus one equals five.
20.
Answer:
Explanation:
Subtraction:
4 – 2 = 2.
=> Four minus two equals two.
21.
Answer:
Explanation:
Subtraction:
3 – 1 = 2.
=> Three minus one equals two.
22.
Answer:
Explanation:
Subtraction:
5 – 3 = 2.
=> Five minus three equals two.
23.
Answer:
Explanation:
Subtraction:
2 – 0 = 2.
=> Two minus zero equals two.
24.
Answer:
Explanation:
Subtraction:
4 – 1 = 3.
=> Four minus one equals three.
25.
Answer:
Explanation:
Subtraction:
5 – 2 = 3.
=> Six minus two equals three.
26.
Answer:
Explanation:
Subtraction:
6 – 4 = 2.
=> Six minus four equals two.
27.
Answer:
Explanation:
Subtraction:
2 – 1 = 1.
=> Two minus one equals one.
28.
Answer:
Explanation:
Subtraction:
3 – 2 = 1.
=> Three minus two equals one.
29.
Answer:
Explanation:
Subtraction:
6 – 5 = 1.
=> Six minus five equals one.
30.
Answer:
Explanation:
Subtraction:
5 – 0 = 5.
=> Five minus zero equals five.
31. 4 – 3 = ____
Answer:
4 – 3 = 1.
Explanation:
Subtraction:
4 – 3 = 1.
=> Four minus three equals one.
32. 6 – 2 = ____
Answer:
6 – 2 = 4.
Explanation:
Subtraction:
6 – 2 = 4.
=> Six minus two equals four.
33. 5 – 4 = ____
Answer:
5 – 4 = 1.
Explanation:
Subtraction:
5 – 4 = 1.
=> Five minus four equals one.
34. 6 – 3 = ___
Answer:
6 – 3 = 3.
Explanation:
Subtraction:
6 – 3 = 3.
=> Six minus three equals three .
35. 1 – 0 = ___
Answer:
1 – 0 = 1.
Explanation:
Subtraction:
1 – 0 = 1.
=> One minus zero equals one.
36. 2 – 2 = ___
Answer:
2 – 2 = 0.
Explanation:
Subtraction:
2 – 2 = 0.
=> Two minus two equals zero.
Solve each problem.
37. There are 2 
.
There are 4 
.
How many in all ? _____
Answer:
Total number of buildings and houses = 4.
Explanation:
Number of buildings = 2.
Number of Houses = 2.
Total number of buildings and houses = Number of buildings + Number of Houses
= 2 + 2
= 4.
38. Jeff has 4 
.
Karen has 1 .
What is the difference? ______
Answer:
The difference between Jeff and Karen having baseballs is 3.
Explanation:
Number of base balls Jeff has = 4.
Number of base balls Karen has = 1.
Difference:
Number of base balls Jeff has – Number of base balls Karen has
= 4 – 1
= 3.
39. There are 5 
.
3 fly away.
Subtract 5 minus 3. _____
Answer:
Number of butterflies are left = 2.
5 minus 3 equals 2.
Explanation:
Number of butterflies there = 5.
Number of butterflies flew away = 3.
Difference:
Number of butterflies are left = Number of butterflies there – Number of butterflies flew away
= 5 – 3
= 2.
40. There is 1 
.
There are 2 
.
Add 1 plus 2. ____
Answer:
Total number of pencils and pens there = 3.
1 plus 2 equals three.
Explanation:
Number of Pencils there = 1.
Number of pens there = 2.
Total number of pencils and pens there = Number of Pencils there + Number of pens there
= 1 + 2
= 3.
Add.
41.
Answer:
Explanation:
Addition:
9 + 1 = 10.
=> Nine plus one equals ten.
42.
Answer:
Explanation:
Addition:
2 + 7 = 9.
=> Two plus seven equals nine.
43.
Answer:
Explanation:
Addition:
6 + 4 = 10.
=> Six plus four equals ten.
44.
Answer:
Explanation:
Addition:
0 + 8 = 8.
=> Zero plus eight equals eight.
45.
Answer:
Explanation:
Addition:
5 + 3 = 8.
=> Five plus three equals eight.
46.
Answer:
Explanation:
Addition:
1 + 6 = 7.
=> One plus six equals seven.
47.
Answer:
Explanation:
Addition:
4 + 4 = 8.
=> Four plus four equals eight.
48.
Answer:
Explanation:
Addition:
0 + 9 = 9.
=> Zero plus nine equals nine.
49.
Answer:
Explanation:
Addition:
3 + 6 = 9.
=> Three plus six equals nine.
50.
Answer:
Explanation:
Addition:
2 + 8 = 10.
=> Two plus eight equals ten.
51.
Answer:
Explanation:
Addition:
7 + 3 = 10.
=> Seven plus three equals ten.
52.
Answer:
Explanation:
Addition:
3 + 4 = 7.
=> Three plus four equals seven.
53.
Answer:
Explanation:
Addition:
10 + 0 = 10.
=> Ten plus zero equals ten.
54.
Answer:
Explanation:
Addition:
1 + 4 = 5.
=> One plus four equals five.
55.
Answer:
Explanation:
Addition:
2 + 5 = 7.
=> Two plus five equals seven.
56.
Answer:
Explanation:
Addition:
8 + 1 = 9.
=> Eight plus one equals nine.
57.
Answer:
Explanation:
Addition:
5 + 5 = 10.
=> Five plus five equals ten.
58.
Answer:
Explanation:
Addition:
6 + 2 = 8.
=> Six plus two equals eight.
59.
Answer:
Explanation:
Subtraction:
10 – 5 = 5.
=> Ten minus five equals five.
Subtract.
60.
Answer:
Explanation:
Subtraction:
10 – 8 = 2.
=> Ten minus eight equals two.
61.
Answer:
Explanation:
Subtraction:
9 – 3 = 6.
=> Nine minus three equals six.
62.
Answer:
Explanation:
Subtraction:
8 – 6 = 2.
=> Eight minus six equals two.
63.
Answer:
Explanation:
Subtraction:
7 – 1 = 6.
=> Seven minus one equals six.
64.
Answer:
Explanation:
Subtraction:
9 – 0 = 9.
=> Nine minus zero equals nine.
65.
Answer:
Explanation:
Subtraction:
8 – 7 = 1.
=> Eight minus seven equals one.
66.
Answer:
Explanation:
Subtraction:
10 – 3 = 7.
=> Ten minus three equals seven.
67.
Answer:
Explanation:
Subtraction:
7 – 7 = 0.
=> Seven minus seven equals zero.
68.
Answer:
Explanation:
Subtraction:
9 – 5 = 4.
=> Nine minus five equals four.
69.
Answer:
Explanation:
Subtraction:
8 – 1 = 7.
=> Eight minus one equals seven.
70.
Answer:
Explanation:
Subtraction:
7 – 4 = 3.
=> Seven minus four equals three.
71.
Answer:
Explanation:
Subtraction:
10 – 1 = 9.
=> Ten minus one equals nine.
72.
Answer:
Explanation:
Subtraction:
9 – 8 = 1.
=> Nine minus eight equals one.
73.
Answer:
Explanation:
Subtraction:
8 – 4 = 4.
=> Eight minus four equals four.
74.
Answer:
Explanation:
Subtraction:
10 – 2 = 8.
=> Ten minus two equals eight.
75.
Answer:
Explanation:
Subtraction:
7 – 0 = 7.
=> Seven minus zero equals seven.
76.
Answer:
Explanation:
Subtraction:
10 – 9 = 1.
=> Ten minus nine equals one.
Solve each problem.
77. There are 4 
.
5 more come.
Now how many are here? _______
Answer:
Total number of rabbits there = 9.
Explanation:
Number of rabbits there = 4.
Number of rabbits more came = 5.
Total number of rabbits there = Number of rabbits there + Number of rabbits more came
= 4 + 5
= 9.
78. There are 9 
.
There are 6 
.
How many more than are there? _____
Answer:
There are 3 more   than .
Explanation:
Number of leaves there = 9.
Number of leaves there = 6.
Difference:
Number of leaves there – Number of leaves there
= 9 – 6
= 3.
79.
Miguel has 10⊄.
He buys 
for 7⊄.
How much money does he have left? ________ ⊄
Answer:
Number of ⊄ Miguel is left with = 3.
Explanation:
Number of ⊄ Miguel has = 10.
Cost of toy Miguel buys = 7⊄ .
Number of ⊄ Miguel is left with = Number of ⊄ Miguel has – Cost of toy Miguel buys
= 10 – 7
= 3.
80. Jenny has 5 
.
She finds 2 more .
What is the sum of 5 plus 2? ________
Answer:
Total number of flowers Jenny has now = 7.
The sum of 5 plus 2 equals 7.
Explanation:
Number of flowers Jenny has = 5.
Number of flowers Jenny finds more = 2.
Total number of flowers Jenny has now = Number of flowers Jenny has + Number of flowers Jenny finds more
= 5 + 2
= 7.
81. There are 8 
.
3 ran away.
What is 8 minus 3? _____
Answer:
Number of Squirrels left = 5.
8 minus 3 equals 5.
Explanation:
Number of Squirrels there = 8.
Number of Squirrels ran away = 3.
Number of Squirrels left = Number of Squirrels there – Number of Squirrels ran away
= 8 – 3
= 5.
82. I buy 
for 4⊄.
I buy 
for 6⊄.
How much money did I spend? ____ ⊄
Answer:
Total cost of pencil and pens I buy = 10⊄.
Explanation:
Cost of one pencils = 4⊄.
Cost of one pen = 6⊄.
Total cost of pencil and pens I buy = Cost of one pencils + Cost of one pen
= 4 + 6
= 10⊄.