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
5 × 10 = ______
33 − 10 = ______
20 + 20 = ______
38 − 10 = ______
7 × 10 = ______
66 + 10 = ______
47 − 10 = ______
30 + 20 = ______
24 − 10 = ______
83 + 20 = ______
9 × 10 = ______
47 + 10 = ______
11 + 10 = ______
34 + 10 = ______
74 + 10 = ______
32 + 10 = ______
22 − 10 = ______
68 + 10 = ______
25 + 20 = ______
47 + 20 = ______
