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 = ______
23 + 20 = ______
71 + 10 = ______
70 + 10 = ______
8 × 10 = ______
21 + 10 = ______
2 × 10 = ______
36 + 20 = ______
45 + 20 = ______
3 × 10 = ______
74 + 20 = ______
58 − 10 = ______
88 − 10 = ______
94 − 10 = ______
37 + 20 = ______
38 + 20 = ______
4 × 10 = ______
30 − 10 = ______
23 + 10 = ______
92 − 10 = ______
