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
46 − 10 = ______
24 + 20 = ______
45 − 10 = ______
87 + 10 = ______
1 × 10 = ______
77 + 10 = ______
56 − 10 = ______
50 − 10 = ______
12 + 20 = ______
9 × 10 = ______
2 × 10 = ______
14 + 10 = ______
73 − 10 = ______
76 + 20 = ______
61 − 10 = ______
39 + 10 = ______
3 × 10 = ______
29 + 20 = ______
79 + 10 = ______
16 + 10 = ______
