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Common Core Standards
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Timed Test For
Add using groups of 10 and 100
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Sample Problem
**Complete to solve $52 + 898$.** $\phantom{=}52+898$ $=(50+$ [[☃ math-keypad 1]]$)+ 898$ $=50 + ($[[☃ math-keypad 2]] $+ 898)$ $=50 + $ [[☃ math-keypad 3]] $=$ [[☃ math-keypad 4]]
Complete to solve
52
+
898
52 + 898
5
2
+
8
9
8
.
=
52
+
898
\phantom{=}52+898
=
5
2
+
8
9
8
=
(
50
+
=(50+
=
(
5
0
+
Check Answer
)
+
898
)+ 898
)
+
8
9
8
=
50
+
(
=50 + (
=
5
0
+
(
Check Answer
+
898
)
+ 898)
+
8
9
8
)
=
50
+
=50 +
=
5
0
+
Check Answer
=
=
=
Check Answer
What's your name?
Duration
30 seconds
60 seconds (1 minute)
120 seconds (2 minutes)
180 seconds (3 minutes)
300 seconds (5 minutes)
