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
44 − 10 = ______
47 + 20 = ______
50 − 10 = ______
52 − 10 = ______
48 − 10 = ______
1 × 10 = ______
2 × 10 = ______
58 + 10 = ______
22 + 20 = ______
76 + 10 = ______
4 × 10 = ______
5 × 10 = ______
26 + 20 = ______
94 − 10 = ______
3 × 10 = ______
77 − 10 = ______
40 − 10 = ______
56 + 10 = ______
30 + 20 = ______
87 + 20 = ______
