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
9 × 10 = ______
97 − 10 = ______
66 + 10 = ______
1 × 10 = ______
58 + 10 = ______
75 + 20 = ______
69 + 10 = ______
65 + 20 = ______
41 − 10 = ______
21 − 10 = ______
3 × 10 = ______
7 × 10 = ______
77 − 10 = ______
82 − 10 = ______
59 + 10 = ______
40 + 20 = ______
6 × 10 = ______
60 + 20 = ______
38 − 10 = ______
96 − 10 = ______
