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
2 × 10 = ______
52 − 10 = ______
6 × 10 = ______
52 + 20 = ______
27 − 10 = ______
8 × 10 = ______
53 + 20 = ______
3 × 10 = ______
13 + 10 = ______
55 + 20 = ______
7 × 10 = ______
17 + 20 = ______
60 + 20 = ______
4 × 10 = ______
5 × 10 = ______
33 − 10 = ______
56 − 10 = ______
86 + 20 = ______
89 + 10 = ______
12 + 10 = ______
