Math Review Answer Key
Teacher Answer Key
1st Grade Math Review
Number Ninja (OA)
Equations
8+5=13 | 15-7=8 | 9+5=14
12-8=4 | 6+9=15 | 18-9=9
7+7=14 | 13-6=7 | 7+4=11
16-8=8
Triple Addition
3+6+7=16 | 5+5+4=14
2+8+5=15 | 7+1+9=17
4+6+8=18 | 6+2+4=12
Ten-Frame Addition
9+6=15 | 7+5=12
8+8=16 | 6+5=11
Number Line
14-6=8 | 11-5=6
7+9=16 | 6+8=14
Base Ten Builders (NBT)
Place Value Blocks
1. 3t, 4o = 34 | 2. 5t, 8o = 58
3. 2t, 1o = 21 | 4. 6t, 0o = 60
5. 4t, 3o = 43 | 6. 7t, 2o = 72
Comparison symbols
45<54 | 82=82 | 19<21
70>69 | 33<43 | 99<100
12<21 | 56=56 | 88>78
61>16 | 40=40 | 25<35
102<120 | 77=77 | 9<19
120-Chart Missing
98, 99, 100, 101, 102, 103
114, 115, 116, 117, 118, 119, 120
67, 68, 69, 70, 71, 72
21, 22, 23, 24, 25, 26
Ten More/Less
42: 32/52 | 78: 68/88 | 25: 15/35
91: 81/101 | 60: 50/70 | 13: 3/23
Measurement Master (MD)
Time
C1: 4:00 | C2: 7:30
C3: 10:00 | C4: 1:30
C5: 11:00 | C6: 3:30
Measurement
A: 4 | B: 3 | C: 5
D: 2 | E: 6
Data: Tally Charts
Apple: 4 | Star: 8 | Heart: 3
Sun: 7 | Smile: 9
Star - Heart: 5 | Smile - Sun: 2
App + Hrt + Sun: 14
Shape Shifters (G)
Attributes
Tri: 3,3 | Sq: 4,4 | Hex: 6,6
Rect: 4,4 | Trap: 4,4 | Hex2: 6,6
Partition & Compose
1/2: Split through center (Circ/Rect).
1/4: Split into 4 (Square/Rect/Circ).
Tri+Tri: Square/Large Tri | Sq+Sq+Sq: Rectangle
Rect+Tri: Composite | Sq+Rect: Large Rect