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
39 − 10 = ______
9 × 10 = ______
2 × 10 = ______
30 + 10 = ______
88 − 10 = ______
32 + 10 = ______
19 + 20 = ______
4 × 10 = ______
29 − 10 = ______
17 + 10 = ______
32 + 20 = ______
79 − 10 = ______
24 − 10 = ______
13 + 20 = ______
32 − 10 = ______
91 − 10 = ______
51 + 20 = ______
67 − 10 = ______
43 + 10 = ______
61 + 10 = ______
