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WORK OUT #2 |
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Mental Computation and Number Sense Exercises |
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Recommended for Age 8-9 |
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English
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Latihan matematik ini
disarankan untuk digunakan oleh murid-murid sekolah rendah berumur 8
hingga 9 tahun. Semua latihan adalah menggunakan ayat bahasa Inggeris.
Latihan-latihan matematik ini mengetengahkan konsep mental
computation. Laman ini boleh dicetak terus untuk kegunaan guru
sebagai salah satu aktiviti dalam kelas.
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| 1. |
Work out the total of
each of these in your head. Write the answer. Draw jumps to
show how you did it. |
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| a. |
80 + 36 = _____
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| b. |
120 + 58 = _____
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| c. |
57 + 90 = _____
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2. |
Work out each of these.
Write the answer. Place a (/) above the number you put in
your head first. |
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a. |
80 + 57 = _____ |
b. |
112 + 30 = _____ |
c. |
36 + 70 = _____ |
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d. |
120 + 78 = _____ |
e. |
50 + 52 = _____ |
f. |
40 + 126 = _____ |
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3. |
Complete an
addition sentence to describe each of these. |
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_____ +_____ = _____ |
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b. |
_____ +_____ = _____ |
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