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 = ______
21 − 10 = ______
60 + 20 = ______
69 + 20 = ______
78 + 20 = ______
14 + 10 = ______
26 − 10 = ______
33 − 10 = ______
28 + 20 = ______
7 × 10 = ______
1 × 10 = ______
85 + 20 = ______
61 + 10 = ______
82 + 10 = ______
94 − 10 = ______
81 + 10 = ______
4 × 10 = ______
26 + 10 = ______
32 − 10 = ______
6 × 10 = ______
