1.
46 + 9 × 4 = ?
請圈出最佳答案。 · Circle the best answer.
1.
46 + 9 × 4 = ?
2.
476 − 342 + 58 = ?
3.
計算:200 − 28 × 3 = ___。
Calculate: 200 − 28 × 3 = ___.
4.
37 − 8 × 3 = ?
5.
765 − (14 + 29) = ?
6.
500 − 203 + 242 = ?
7.
計算:21 × 7 + 20 = ___。
Calculate: 21 × 7 + 20 = ___.
8.
計算:180 − 10 × 6 = ___。(先算乘法,再算減法)
Calculate: 180 − 10 × 6 = ___. (Multiply first, then subtract)
9.
估算:2 × 285 − 112,大約是多少?
Estimate roughly: 2 × 285 − 112 ≈ ?
10.
23 + 5 × 7 = ?
11.
計算:360 − 17 × 2 × 8 = ___。
Calculate: 360 − 17 × 2 × 8 = ___.
12.
890 − 438 − 38 = ?
13.
(125 + 75) × 3 = ?
14.
計算:30 + 56 + 34 × 8 = ___。(先算乘法)
Calculate: 30 + 56 + 34 × 8 = ___. (Multiply first)
15.
計算:5 × 4 + 15 = ___。
Calculate: 5 × 4 + 15 = ___.
1. D 82
喵~別忘了先乘後加的規則喔!先算 9 × 4!🐟Meow~ Do not forget the rule: multiply before adding! Calculate 9 × 4 first! 🐟
2. B 192
喵~從左到右按順序計算!先做減法,再做加法就簡單了~🐾Meow~ Calculate left to right! Subtract first, then add~ 🐾
3. B 116
喵!3 份,每份 28 個,就是 28 加 28 加……共 3 次!Meow! 3 groups of 28 — that's 28+28+... 3 times!
4. A 13
喵~記住要先算乘法,再算減法喔!這是運算順序的規則~🐱Meow~ Remember to do the multiplication first, then the subtraction! That is the order of operations~ 🐱
5. C 722
喵~有括號要先算括號裏面的!先算 14 + 29 再減!🐟Meow~ With brackets, calculate what is inside first! Do 14 + 29, then subtract! 🐟
6. B 539
喵~先算 500 − 203,再把結果加上 242!🐱Meow~ First calculate 500 − 203, then add 242 to the result! 🐱
7. D 167
喵!7 份,每份 21 個,就是 21 加 21 加……共 7 次!Meow! 7 groups of 21 — that's 21+21+... 7 times!
8. B 120
喵!6 份,每份 10 個,就是 10 加 10 加……共 6 次!Meow! 6 groups of 10 — that's 10+10+... 6 times!
9. C 450
喵!先做乘法,再做加減~或者用括號先算加減再乘!Meow! Do multiplication first, then add/subtract. Or use brackets to add first!
10. A 58
喵~先乘後加!先算 5 × 7,再加上 23 吧!🐾Meow~ Multiply first, then add! Calculate 5 × 7 first, then add 23! 🐾
11. C 88
喵!2 × 17 就是數 2 共 17 次!2、4、6、8……繼續數下去!Meow! 2 × 17 means count 2, 17 times! That's 2, 4, 6, 8... keep counting!
12. D 414
喵~從左到右減!先算 890 − 438,再減 38~🌟Meow~ Subtract from left to right! Do 890 − 438 first, then subtract 38~ 🌟
13. D 600
喵~先算括號裏面 125 + 75,再乘以 3 吧!🐾Meow~ Calculate inside the brackets first: 125 + 75, then multiply by 3! 🐾
14. B 358
喵!8 份,每份 34 個,就是 34 加 34 加……共 8 次!Meow! 8 groups of 34 — that's 34+34+... 8 times!
15. B 35
喵!4 碗魚,每碗 5 條,那就是 5+5+5+5 條魚!Meow! 4 bowls with 5 fish each — that's 5+5+5+5 fish I can eat!