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 = ______
74 + 20 = ______
51 − 10 = ______
8 × 10 = ______
71 + 10 = ______
3 × 10 = ______
2 × 10 = ______
19 + 10 = ______
93 − 10 = ______
71 − 10 = ______
55 + 20 = ______
54 − 10 = ______
81 + 20 = ______
20 + 20 = ______
88 − 10 = ______
6 × 10 = ______
7 × 10 = ______
62 + 20 = ______
57 − 10 = ______
9 × 10 = ______
