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 = ______
2 × 10 = ______
14 + 20 = ______
41 − 10 = ______
78 − 10 = ______
33 + 20 = ______
92 − 10 = ______
32 + 10 = ______
95 − 10 = ______
66 + 10 = ______
26 − 10 = ______
43 + 10 = ______
3 × 10 = ______
42 − 10 = ______
52 + 20 = ______
84 + 10 = ______
69 + 10 = ______
41 + 20 = ______
61 + 10 = ______
87 − 10 = ______
