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
48 − 10 = ______
7 × 10 = ______
97 − 10 = ______
5 × 10 = ______
9 × 10 = ______
82 + 20 = ______
83 + 10 = ______
22 − 10 = ______
59 − 10 = ______
15 + 20 = ______
33 − 10 = ______
68 + 20 = ______
1 × 10 = ______
48 + 10 = ______
66 + 20 = ______
98 − 10 = ______
60 + 20 = ______
19 + 10 = ______
47 + 10 = ______
88 + 10 = ______
