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
5 × 10 = ______
46 + 20 = ______
9 × 10 = ______
8 × 10 = ______
24 − 10 = ______
33 + 20 = ______
79 + 10 = ______
49 − 10 = ______
26 − 10 = ______
64 + 10 = ______
60 + 20 = ______
18 + 20 = ______
87 − 10 = ______
21 + 20 = ______
31 + 10 = ______
1 × 10 = ______
4 × 10 = ______
42 − 10 = ______
59 + 10 = ______
2 × 10 = ______
