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
33 − 10 = ______
50 − 10 = ______
5 × 10 = ______
52 − 10 = ______
4 × 10 = ______
77 − 10 = ______
21 + 20 = ______
8 × 10 = ______
3 × 10 = ______
39 + 20 = ______
56 − 10 = ______
1 × 10 = ______
2 × 10 = ______
27 + 20 = ______
51 + 20 = ______
18 + 10 = ______
14 + 10 = ______
36 − 10 = ______
35 + 20 = ______
79 + 10 = ______
