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
7 × 10 = ______
44 + 20 = ______
88 + 10 = ______
78 + 20 = ______
6 × 10 = ______
26 + 10 = ______
8 × 10 = ______
37 − 10 = ______
5 × 10 = ______
54 − 10 = ______
73 + 10 = ______
4 × 10 = ______
17 + 20 = ______
9 × 10 = ______
14 + 10 = ______
60 − 10 = ______
15 + 20 = ______
55 − 10 = ______
26 + 20 = ______
2 × 10 = ______
