Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
81 − 10 = ______
2 × 10 = ______
25 − 10 = ______
9 × 10 = ______
43 + 10 = ______
24 − 10 = ______
78 + 10 = ______
66 + 20 = ______
31 + 10 = ______
62 + 10 = ______
82 + 10 = ______
83 + 20 = ______
5 × 10 = ______
3 × 10 = ______
50 − 10 = ______
70 + 20 = ______
40 − 10 = ______
40 + 10 = ______
58 − 10 = ______
12 + 20 = ______
