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
83 + 20 = ______
4 × 10 = ______
14 + 20 = ______
26 + 20 = ______
29 − 10 = ______
55 + 20 = ______
88 + 20 = ______
33 + 10 = ______
57 + 20 = ______
31 − 10 = ______
11 + 20 = ______
5 × 10 = ______
6 × 10 = ______
3 × 10 = ______
25 − 10 = ______
63 + 20 = ______
43 − 10 = ______
52 + 10 = ______
85 − 10 = ______
1 × 10 = ______
