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
18 + 20 = ______
26 + 10 = ______
36 + 20 = ______
31 + 20 = ______
33 − 10 = ______
80 + 10 = ______
53 + 10 = ______
6 × 10 = ______
96 − 10 = ______
27 + 10 = ______
89 + 20 = ______
5 × 10 = ______
9 × 10 = ______
48 − 10 = ______
27 − 10 = ______
3 × 10 = ______
45 + 10 = ______
8 × 10 = ______
40 + 10 = ______
69 − 10 = ______
