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
6 × 10 = ______
8 × 10 = ______
27 + 10 = ______
62 + 20 = ______
48 + 10 = ______
19 + 10 = ______
5 × 10 = ______
61 − 10 = ______
54 − 10 = ______
48 + 20 = ______
72 + 20 = ______
7 × 10 = ______
25 + 10 = ______
1 × 10 = ______
72 + 10 = ______
40 + 10 = ______
56 + 10 = ______
68 − 10 = ______
84 + 20 = ______
80 − 10 = ______
