Gr.9 Mental Math Challenge Round 1
Authored by Sherin Fouad
Mathematics
9th - 12th Grade
CCSS covered
Used 31+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4
5
10
2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the value of x
5(2x-6)=20
25
5
12
4
Tags
CCSS.7.EE.B.4A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-10, 2
- 2 , - 4
6 , 4
-12 , -2
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve
110 x 5300
350000
583000
5.3700
53500
Tags
CCSS.4.NBT.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find x in the system of equations
2x + 3y = 10
4x - 3y = 14
x= 4
x=2
x=10
x=-12
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2,021,039
218,730
3,012,009
4,021,039
Tags
CCSS.5.NBT.B.6
CCSS.6.NS.B.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0.014306203
0.1340620000
71243206
0.314240002
Tags
CCSS.5.NBT.B.7
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