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
4 × 10 = ______
49 + 10 = ______
5 × 10 = ______
62 + 10 = ______
27 + 20 = ______
9 × 10 = ______
8 × 10 = ______
87 − 10 = ______
19 + 10 = ______
68 − 10 = ______
84 + 20 = ______
76 + 10 = ______
82 + 10 = ______
21 − 10 = ______
84 + 10 = ______
59 + 20 = ______
63 − 10 = ______
94 − 10 = ______
43 + 10 = ______
25 + 10 = ______
