Mental Math: Addition
Authored by Ms.Etab Amer
Mathematics
3rd Grade
Used 36+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To find the sum using an open number line for:
236 + 1 43
Start with 236 and jump 100 then 40 then 3
Start with 236 and jump 200 then 30 then 6
Strat with 236 and add 236
Start with 143 and jump 100 then 40 then 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
408 + 261 =
469
668
669
269
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using make ten strategy, the first step to find 348 + 126 is:
348 + 20
348 + 100
348 + 2
248 + 6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using make ten strategy, the first step to find 257 + 115 is:
257 + 3
257 + 5
257 + 100
257 + 10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using make ten strategy, to find 246 + 135 I will follow the steps:
246 + 4 = 250
250 + 100 =350
350 + 30 = 380
380 + 1 = 381
246 + 100 = 346
246 + 4 = 250
250 + 100 =350
350 + 30 = 380
380 + 5 = 385
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To find 325 + 168 using make ten strategy, I will follow the steps:
325 + 5 = 330
330 + 100 =430
430 + 60 = 490
490 + 8 = 498
325 + 5 = 330
330 + 100 =430
430 + 60 = 490
490 + 3 = 493
325 + 5 = 330
330 + 100 =430
490 + 8 = 498
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